DeCS 
    2008 - March 17, 2008 version
    
       
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          Alphabetic 
          Index of Descriptors  
         
            
        
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         | 
 R Factors  | 
R Plasmids use R Factors  | 
R Repetitive Sequence use Terminal Repeat Sequences  | 
R+D use Scientific Research and Technological Development  | 
R-SNARE Proteins  | 
R-Type Calcium Channels use Calcium Channels, R-Type  | 
RAEB use Anemia, Refractory, with Excess of Blasts  | 
RAEM use Anemia, Refractory, with Excess of Blasts  | 
RAG-1 Genes use Genes, RAG-1  | 
RAIDD Signaling Adaptor Protein use CRADD Signaling Adaptor Protein  | 
RANK Ligand  | 
RANTES use Chemokine CCL5  | 
RAPD Technique use Random Amplified Polymorphic DNA Technique  | 
RAPD-PCR use Random Amplified Polymorphic DNA Technique  | 
RAS use Simplified Sewerage  | 
RDA use Nutrition Policy  | 
REM Sleep Behavior Disorder  | 
REM Sleep Deprivation use Sleep Deprivation  | 
REM Sleep Parasomnias  | 
REM Sleep-Related Sinus Arrest use REM Sleep Parasomnias  | 
REPIDISCA use Pan American Center for Sanitary Engineering and Environmental Sciences  | 
RFLP use Polymorphism, Restriction Fragment Length  | 
RGS Proteins  | 
RICYT use Network on Science and Technology Indicators - Ibero-American and Inter-American  | 
RING Finger Domains  | 
RING Finger Motifs use RING Finger Domains  | 
RIP Serine-Threonine Kinases use Receptor-Interacting Protein Serine-Threonine Kinases  | 
RNA  | 
RNA 3' End Processing  | 
RNA 3' Polyadenylation Signals  | 
RNA 5' Terminal Oligopyrimidine Sequence  | 
RNA Amplification Techniques use Nucleic Acid Amplification Techniques  | 
RNA Aptamers use Aptamers, Nucleotide  | 
RNA Cap Analogs  | 
RNA Cap-Binding Proteins  | 
RNA Caps  | 
RNA Computers use Computers, Molecular  | 
RNA Databases use Databases, Nucleic Acid  | 
RNA Decay use RNA Stability  | 
RNA Denaturation use Nucleic Acid Denaturation  | 
RNA Editing  | 
RNA Helicases  | 
RNA Interference  | 
RNA Ligase (ATP)  | 
RNA Methylases use tRNA Methyltransferases  | 
RNA N-Glycosidase use Ribosome Inactivating Proteins  | 
RNA Nucleotidyltransferases  | 
RNA Phages  | 
RNA Polymerase I  | 
RNA Polymerase II  | 
RNA Polymerase III  | 
RNA Polymerase Sigma 54  | 
RNA Polymerases use DNA-Directed RNA Polymerases  | 
RNA Precursors  | 
RNA Probes  | 
RNA Processing, Post-Transcriptional  | 
RNA Regulatory Sequences use Regulatory Sequences, Ribonucleic Acid  | 
RNA Replicase  | 
RNA Rodent Viruses use RNA Viruses  | 
RNA Sequence use Base Sequence  | 
RNA Sequence Analysis use Sequence Analysis, RNA  | 
RNA Splice Sites  | 
RNA Splicing  | 
RNA Splicing, Alternative use Alternative Splicing  | 
RNA Stability  | 
RNA Synthesis Inhibitors use Nucleic Acid Synthesis Inhibitors  | 
RNA Transport  | 
RNA Tumor Viruses use Retroviridae  | 
RNA Virus Infections  | 
RNA Viruses  | 
RNA trans-Splicing use Trans-Splicing  | 
RNA, Algal  | 
RNA, Antisense  | 
RNA, Archaeal  | 
RNA, Bacterial  | 
RNA, Catalytic  | 
RNA, Chloroplast  | 
RNA, Chromosomal use RNA, Nuclear  | 
RNA, Complementary  | 
RNA, Double-Stranded  | 
RNA, Fungal  | 
RNA, Guide  | 
RNA, Helminth  | 
RNA, Heterogeneous Nuclear  | 
RNA, Messenger  | 
RNA, Messenger, Editing use RNA Editing  | 
RNA, Messenger, Masked use RNA, Messenger, Stored  | 
RNA, Messenger, Maternal use RNA, Messenger, Stored  | 
RNA, Messenger, Paternal use RNA, Messenger, Stored  | 
RNA, Messenger, Polyadenylated use RNA, Messenger  | 
RNA, Messenger, Precursors use RNA Precursors  | 
RNA, Messenger, Splicing use RNA Splicing  | 
RNA, Messenger, Stored  | 
RNA, Neoplasm  | 
RNA, Non-Polyadenylated use RNA  | 
RNA, Nuclear  | 
RNA, Piwi-Interacting use RNA, Small Interfering  | 
RNA, Plant  | 
RNA, Polyadenylated use RNA, Messenger  | 
RNA, Protozoan  | 
RNA, Ribosomal  | 
RNA, Ribosomal, 16S  | 
RNA, Ribosomal, 18S  | 
RNA, Ribosomal, 23S  | 
RNA, Ribosomal, 28S  | 
RNA, Ribosomal, 5.8S  | 
RNA, Ribosomal, 5S  | 
RNA, Ribosomal, Precursors use RNA Precursors  | 
RNA, Ribosomal, Self-Splicing  | 
RNA, Satellite  | 
RNA, Scan use RNA, Small Interfering  | 
RNA, Small Cytoplasmic  | 
RNA, Small Interfering  | 
RNA, Small Nuclear  | 
RNA, Small Nuclear, Precursors use RNA Precursors  | 
RNA, Small Nucleolar  | 
RNA, Small Temporal use MicroRNAs  | 
RNA, Spliced Leader  | 
RNA, Transfer  | 
RNA, Transfer, Ala  | 
RNA, Transfer, Amino Acid-Specific  | 
RNA, Transfer, Amino Acyl  | 
RNA, Transfer, Arg  | 
RNA, Transfer, Asn  | 
RNA, Transfer, Asp  | 
RNA, Transfer, Cys  | 
RNA, Transfer, Gln  | 
RNA, Transfer, Glu  | 
RNA, Transfer, Gly  | 
RNA, Transfer, His  | 
RNA, Transfer, Ile  | 
RNA, Transfer, Initiator use RNA, Transfer, Met  | 
RNA, Transfer, Leu  | 
RNA, Transfer, Lys  | 
RNA, Transfer, Met  | 
RNA, Transfer, Methyltransferases use tRNA Methyltransferases  | 
RNA, Transfer, Phe  | 
RNA, Transfer, Precursors use RNA Precursors  | 
RNA, Transfer, Pro  | 
RNA, Transfer, Ser  | 
RNA, Transfer, Thr  | 
RNA, Transfer, Trp  | 
RNA, Transfer, Tyr  | 
RNA, Transfer, Val  | 
RNA, Untranslated  | 
RNA, Viral  | 
RNA-Binding Protein EWS  | 
RNA-Binding Protein FUS  | 
RNA-Binding Proteins  | 
RNA-Dependent DNA Polymerase use RNA-Directed DNA Polymerase  | 
RNA-Dependent Protein Kinase use eIF-2 Kinase  | 
RNA-Dependent RNA Polymerase use RNA Replicase  | 
RNA-Directed DNA Polymerase  | 
RNA-Induced Silencing Complex  | 
RNase use Ribonucleases  | 
RNase A use Ribonuclease, Pancreatic  | 
RNase H use Ribonuclease H  | 
RNase T1 use Ribonuclease T1  | 
ROC Analysis use ROC Curve  | 
ROC Curve  | 
RSH Syndrome use Smith-Lemli-Opitz Syndrome  | 
RSV Vaccines use Respiratory Syncytial Virus Vaccines  | 
RT-PCR use Reverse Transcriptase Polymerase Chain Reaction  | 
Rabbit Aorta Contracting Substance use Thromboxane A2  | 
Rabbit coronavirus use Coronavirus  | 
Rabbit fibroma virus use Fibroma Virus, Rabbit  | 
Rabbit hemorrhagic disease virus use Hemorrhagic Disease Virus, Rabbit  | 
Rabbit, Domestic use Rabbits  | 
Rabbitpox virus use Vaccinia virus  | 
Rabbits  | 
Rabdosia  | 
Rabies  | 
Rabies Vaccines  | 
Rabies virus  | 
Raccoon Dogs  | 
Raccoon parvovirus use Parvovirus  | 
Raccoons  | 
Race Relations  | 
Race and Health use Ethnic Group and Health  | 
Race or Color Distribution use Race or Ethnic Group Distribution  | 
Race or Ethnic Group Distribution  | 
Racemases use Racemases and Epimerases  | 
Racemases and Epimerases  | 
Racemomycins use Streptothricins  | 
Rachischisis use Spinal Dysraphism  | 
Rachitis use Rickets  | 
Racism use Prejudice  | 
Raclopride  | 
Racquet Sports  | 
Racquetball use Racquet Sports  | 
Rad51 Recombinase  | 
Rad52 DNA Repair and Recombination Protein  | 
RadLV use Radiation Leukemia Virus  | 
Radar  | 
Radial Artery  | 
Radial Circulation Filters use Radial Filters  | 
Radial Filters  | 
Radial Keratotomy use Keratotomy, Radial  | 
Radial Nerve  | 
Radial Neuropathy  | 
Radiant Warmers, Infant use Incubators, Infant  | 
Radiation  | 
Radiation Accidents use Accidents, Radiation  | 
Radiation Biology use Radiobiology  | 
Radiation Chimera  | 
Radiation Control  | 
Radiation Diseases  | 
Radiation Dosage  | 
Radiation Dosimetry use Radiometry  | 
Radiation Effects  | 
Radiation Exposure  | 
Radiation Exposure Measure  | 
Radiation Exposure Pathways  | 
Radiation Genetics  | 
Radiation Hybrid Mapping  | 
Radiation Hybrid Maps use Radiation Hybrid Mapping  | 
Radiation Hybrids use Radiation Hybrid Mapping  | 
Radiation Injuries  | 
Radiation Injuries, Experimental  | 
Radiation Leukemia Virus  | 
Radiation Measurement  | 
Radiation Monitoring  | 
Radiation Oncology  | 
Radiation Pneumonitis  | 
Radiation Protection  | 
Radiation Recall Dermatitis use Radiodermatitis  | 
Radiation Risks  | 
Radiation Safety Guidelines use Guidelines for Radiological Safety  | 
Radiation Safety Manual use Guidelines for Radiological Safety  | 
Radiation Safety Standards use Guidelines for Radiological Safety  | 
Radiation Sensitivity use Radiation Tolerance  | 
Radiation Shielding use Shielding against Radiation  | 
Radiation Sickness use Radiation Injuries  | 
Radiation Sources  | 
Radiation Syndrome use Radiation Injuries  | 
Radiation Therapy, Computer-Assisted use Radiotherapy, Computer-Assisted  | 
Radiation Tolerance  | 
Radiation, Ionizing  | 
Radiation, Nonionizing  | 
Radiation, Visible use Light  | 
Radiation, Whole-Body use Whole-Body Irradiation  | 
Radiation-Induced Cancer use Neoplasms, Radiation-Induced  | 
Radiation-Induced Dermatitis use Radiodermatitis  | 
Radiation-Protective Agents  | 
Radiation-Sensitizing Agents  | 
Radical Neck Dissection use Neck Dissection  | 
Radicular Cyst  | 
Radiculitis use Radiculopathy  | 
Radiculopathy  | 
Radiesthesia  | 
Radio  | 
Radio Waves  | 
Radioactive Accidents and Events  | 
Radioactive Air Pollutants use Air Pollutants, Radioactive  | 
Radioactive Confinement  | 
Radioactive Decontamination  | 
Radioactive Effluents  | 
Radioactive Elements use Elements, Radioactive  | 
Radioactive Emission  | 
Radioactive Fallout  | 
Radioactive Half-Life use Half-Life  | 
Radioactive Isotopes use Radioisotopes  | 
Radioactive Material  | 
Radioactive Pollutants  | 
Radioactive Pollution  | 
Radioactive Rain use Radioactive Fallout  | 
Radioactive Substances, Products and Materials  | 
Radioactive Tracers  | 
Radioactive Waste  | 
Radioactivity  | 
Radioallergosorbent Test  | 
Radioautography use Autoradiography  | 
Radiobiology  | 
Radiocarpal Joint use Wrist Joint  | 
Radiochemistry  | 
Radiocinematography use Cineradiography  | 
Radiodermatitis  | 
Radiographic Film use X-Ray Film  | 
Radiographic Image Enhancement  | 
Radiographic Image Interpretation, Computer-Assisted  | 
Radiographic Intensifying Screens use X-Ray Intensifying Screens  | 
Radiographic Magnification  | 
Radiographic Phantoms use Phantoms, Imaging  | 
Radiography  | 
Radiography, Abdominal  | 
Radiography, Bitewing  | 
Radiography, Dental  | 
Radiography, Dental, Digital  | 
Radiography, Dual-Energy Scanned Projection  | 
Radiography, Insufflation use Pneumoradiography  | 
Radiography, Interventional  | 
Radiography, Panoramic  | 
Radiography, Thoracic  | 
Radioimmunoassay  | 
Radioimmunoconjugates use Immunoconjugates  | 
Radioimmunodetection  | 
Radioimmunoimaging use Radioimmunodetection  | 
Radioimmunoprecipitation Analysis use Radioimmunoprecipitation Assay  | 
Radioimmunoprecipitation Assay  | 
Radioimmunoscintigraphy use Radioimmunodetection  | 
Radioimmunosorbent Assay of Allergens use Radioallergosorbent Test  | 
Radioimmunosorbent Test  | 
Radioimmunotherapy  | 
Radioisotope Angiography use Radionuclide Angiography  | 
Radioisotope Brachytherapy use Brachytherapy  | 
Radioisotope Dilution Technique  | 
Radioisotope Generators use Radionuclide Generators  | 
Radioisotope Renography  | 
Radioisotope Scanning use Radionuclide Imaging  | 
Radioisotope Teletherapy  | 
Radioisotopes  | 
Radioligand Assay  | 
Radiologic Health  | 
Radiologic Phantoms use Phantoms, Imaging  | 
Radiologic Physics use Health Physics  | 
Radiologic Protection use Radiation Protection  | 
Radiologic Surveillance use Radiological Surveillance  | 
Radiological Safety Guidelines use Guidelines for Radiological Safety  | 
Radiological Safety Manual use Guidelines for Radiological Safety  | 
Radiological Safety Standards use Guidelines for Radiological Safety  | 
Radiological Surveillance  | 
Radiology  | 
Radiology Department, Hospital  | 
Radiology Information Systems  | 
Radiology, Diagnostic X-Ray use Radiography  | 
Radiology, Interventional  | 
Radiology, Therapeutic use Radiation Oncology  | 
Radiometry  | 
Radionuclide  | 
Radionuclide Angiography  | 
Radionuclide Angiography, First-Pass use Ventriculography, First-Pass  | 
Radionuclide Angiography, Gated use Gated Blood-Pool Imaging  | 
Radionuclide Generators  | 
Radionuclide Imaging  | 
Radionuclide Maximum Acceptable Concentration  | 
Radionuclide Tomography, Computed use Tomography, Emission-Computed  | 
Radionuclide Tomography, Single-Photon Emission-Computed use Tomography, Emission-Computed, Single-Photon  | 
Radionuclide Ventriculography  | 
Radionuclide Ventriculography, First-Pass use Ventriculography, First-Pass  | 
Radionuclide Ventriculography, Gated use Gated Blood-Pool Imaging  | 
Radionuclides use Radioisotopes  | 
Radiopaque Media use Contrast Media  | 
Radiopharmaceuticals  | 
Radioprotective Agents use Radiation-Protective Agents  | 
Radioreceptor Assay use Radioligand Assay  | 
Radioselenomethionine use Selenomethionine  | 
Radiosensitivity use Radiation Tolerance  | 
Radiosensitizing Agents use Radiation-Sensitizing Agents  | 
Radiosurgery  | 
Radiotherapy  | 
Radiotherapy Dosage  | 
Radiotherapy Dose Fractionation use Dose Fractionation  | 
Radiotherapy Planning, Computer-Assisted  | 
Radiotherapy, Adjuvant  | 
Radiotherapy, Computer-Assisted  | 
Radiotherapy, Conformal  | 
Radiotherapy, High-Energy  | 
Radiotherapy, Intensity-Modulated  | 
Radiotherapy, Interstitial use Brachytherapy  | 
Radiotherapy, Intracavity use Brachytherapy  | 
Radiotherapy, Lymphatic use Lymphatic Irradiation  | 
Radiotherapy, Surface use Brachytherapy  | 
Radiotherapy, Targeted use Radiotherapy  | 
Radish use Raphanus  | 
Radium  | 
Radium Bromatum  | 
Radium Metallicum  | 
Radius  | 
Radius Fractures  | 
Radon  | 
Radon Daughters  | 
Raeder Paratrigeminal Syndrome use Trigeminal Nerve Diseases  | 
Raffinose  | 
Rafoxanide  | 
Rage  | 
Ragweed use Ambrosia  | 
Ragwort use Senecio  | 
Rahnella  | 
Rahnella aquatilis use Rahnella  | 
Raillietina use Cestoda  | 
Raillietiniasis use Cestode Infections  | 
Railroads  | 
Rain  | 
Rain Induction use Mist Catchment  | 
Rain Measurement  | 
Rain Stimulation use Mist Catchment  | 
Rain, Acid use Acid Rain  | 
Rain-Gauge use Precipitation Gauge  | 
Rainfall use Atmospheric Precipitation  | 
Rainfall Amount use Pluviometry  | 
Rainfall Intensity use Precipitation Intensity  | 
Rainfall-Runoff Relationship  | 
Rainwater  | 
Rainwater Catchment  | 
Rainy Season  | 
Raising of Poultry use Aviculture  | 
Raisins use Vitis  | 
Raja use Skates (Fish)  | 
Rajania subsamarata  | 
Rajidae use Skates (Fish)  | 
Rajiformes use Skates (Fish)  | 
Raleigh Waves use Surface Waves  | 
Rales use Respiratory Sounds  | 
Raloxifene  | 
Ralstonia  | 
Ralstonia eutropha use Cupriavidus necator  | 
Ralstonia pickettii  | 
Ralstonia solanacearum  | 
Raman Spectroscopy use Spectrum Analysis, Raman  | 
Ramie use Boehmeria  | 
Ramipril  | 
Ramps use Architectural Accessibility  | 
Ramsay Hunt Auricular Syndrome use Herpes Zoster Oticus  | 
Ramsay Hunt Cerebellar Syndrome use Myoclonic Cerebellar Dyssynergia  | 
Ramsay Hunt Paralysis Syndrome use Parkinsonian Disorders  | 
Rana use Ranidae  | 
Rana bufo use Bufo rana  | 
Rana catesbeiana  | 
Rana esculenta  | 
Rana pipiens  | 
Rana ridibunda  | 
Rana temporaria  | 
Ranavirus  | 
Randia use Rubiaceae  | 
Random Allocation  | 
Random Amplified Polymorphic DNA Technique  | 
Random Peptide Library use Peptide Library  | 
Random and Systematic Sampling  | 
Randomization use Random Allocation  | 
Randomized Controlled Clinical Trial use Randomized Controlled Trial  | 
Randomized Controlled Trial  | 
Randomized Controlled Trials as Topic  | 
Range of Motion, Articular  | 
Ranid herpesvirus 1 use Herpesvirus 1, Ranid  | 
Ranidae  | 
Ranitidine  | 
Rank-Sum Tests use Statistics, Nonparametric  | 
Ranula  | 
Ranunculaceae  | 
Ranunculus  | 
Ranunculus acris  | 
Ranunculus bulbosus  | 
Ranunculus ficaria  | 
Ranunculus flammula  | 
Ranunculus glacialis  | 
Ranunculus repens  | 
Ranunculus sceleratus  | 
Ranvier's Nodes  | 
Rapadura  | 
Rapamycin use Sirolimus  | 
Rapamycin Binding Proteins use Tacrolimus Binding Proteins  | 
Rapanea use Myrsinaceae  | 
Rape  | 
Rapeseed use Brassica rapa  | 
Raphanistrum arvense  | 
Raphanus  | 
Raphanus sativus  | 
Raphe Nuclei  | 
Rapid Evaluation  | 
Rapid Eye Movement Sleep Behavior Disorder use REM Sleep Behavior Disorder  | 
Rapid Eye Movement Sleep Parasomnias use REM Sleep Parasomnias  | 
Rapid Eye Movements use Sleep, REM  | 
Rapid Filters  | 
Rapid Filtration  | 
Rapid Mix  | 
Rappel Descent  | 
Raptors  | 
Rare Books  | 
Rare Diseases  | 
Rare Earth Metals use Metals, Rare Earth  | 
Rare Gases use Noble Gases  | 
Rash use Exanthema  | 
Rasmussen Syndrome use Encephalitis  | 
Rat Cytomegalovirus use Muromegalovirus  | 
Rat Kangaroo use Potoroidae  | 
Rat Nematode use Nippostrongylus  | 
Rat Tapeworm use Hymenolepis diminuta  | 
Rat coronavirus use Coronavirus, Rat  | 
Rat encephalomyelitis virus use Theilovirus  | 
Rat virus use Parvovirus  | 
Rat-Bite Fever  | 
Ratanhia peruviana  | 
Ratany use Krameriaceae  | 
Rate Setting and Review  | 
Rates, Ratios and Proportions  | 
Rathke Cleft Cysts use Central Nervous System Cysts  | 
Rathke Pouch Tumor use Craniopharyngioma  | 
Ratibida  | 
Ratification  | 
Rational-Emotive Psychotherapy use Psychotherapy, Rational-Emotive  | 
Rationalization  | 
Rationing, Health Care use Health Care Rationing  | 
Ratites use Palaeognathae  | 
Rats  | 
Rats, Athymic use Rats, Nude  | 
Rats, Bandicoot use Murinae  | 
Rats, Brattleboro  | 
Rats, Cotton use Sigmodontinae  | 
Rats, Gunn  | 
Rats, Hairless  | 
Rats, Holtzman use Rats, Sprague-Dawley  | 
Rats, Inbred A x C 9935 Irish use Rats, Inbred ACI  | 
Rats, Inbred ACI  | 
Rats, Inbred BB  | 
Rats, Inbred BN  | 
Rats, Inbred BUF  | 
Rats, Inbred Brown Norway use Rats, Inbred BN  | 
Rats, Inbred Buffalo use Rats, Inbred BUF  | 
Rats, Inbred CDF use Rats, Inbred F344  | 
Rats, Inbred Dahl  | 
Rats, Inbred F344  | 
Rats, Inbred Fischer 344 use Rats, Inbred F344  | 
Rats, Inbred LEC  | 
Rats, Inbred Lew  | 
Rats, Inbred Lewis use Rats, Inbred Lew  | 
Rats, Inbred Long-Evans Cinnamon use Rats, Inbred LEC  | 
Rats, Inbred OLETF  | 
Rats, Inbred SHR  | 
Rats, Inbred Strains  | 
Rats, Inbred WF  | 
Rats, Inbred WKY  | 
Rats, Inbred Wistar Furth use Rats, Inbred WF  | 
Rats, Kangaroo use Dipodomys  | 
Rats, Long-Evans  | 
Rats, Mutant Strains  | 
Rats, Nude  | 
Rats, Rice use Sigmodontinae  | 
Rats, Sand use Gerbillinae  | 
Rats, Spontaneously Hypertensive use Rats, Inbred SHR  | 
Rats, Sprague-Dawley  | 
Rats, Wistar  | 
Rats, Wistar Furth use Rats, Inbred WF  | 
Rats, Wistar Kyoto use Rats, Inbred WKY  | 
Rats, Zucker  | 
Rattlepod Chipilin use Crotalaria  | 
Rattlesnake use Crotalus  | 
Rattlesnake Venoms use Crotalid Venoms  | 
Rattus use Rats  | 
Raulinoa use Rutaceae  | 
Rauscher Spleen Focus-Forming Virus use Spleen Focus-Forming Viruses  | 
Rauscher Virus  | 
Rauwolfia  | 
Rauwolfia serpentina  | 
Rauwolscine use Yohimbine  | 
Ravens use Crows  | 
Raw Effluents  | 
Raw Water  | 
Raynaud Disease  | 
Rays (Fish) use Skates (Fish)  | 
Razoxane  | 
Rb Genes use Genes, Retinoblastoma  | 
Rb Protein use Retinoblastoma Protein  | 
Reactants, Acute-Phase use Acute-Phase Proteins  | 
Reaction Time  | 
Reaction, Acute-Phase use Acute-Phase Reaction  | 
Reactive Attachment Disorder  | 
Reactive Disorders use Adjustment Disorders  | 
Reactive Hemophagocytic Syndrome use Lymphohistiocytosis, Hemophagocytic  | 
Reactive Inhibition  | 
Reactive Nitrogen Species  | 
Reactive Oxygen Species  | 
Reactive Site use Binding Sites  | 
Reactivity-Stability  | 
Readability use Comprehension  | 
Readiness Potential use Contingent Negative Variation  | 
Reading  | 
Reading Disability, Acquired use Dyslexia, Acquired  | 
Reading Disability, Developmental use Dyslexia  | 
Reading Disorder use Dyslexia  | 
Reading Disorder, Developmental use Dyslexia  | 
Reading Frames  | 
Reagent Kits, Diagnostic  | 
Reagent Strips  | 
Reagent Substances, Products and Materials  | 
Reagents use Indicators and Reagents  | 
Reagins  | 
Real-Time Systems use Computer Systems  | 
Reality Testing  | 
Reality Therapy  | 
Reassortant Viruses  | 
Reaven Syndrome X use Metabolic Syndrome X  | 
Rec A Protein use Rec A Recombinases  | 
Rec A Recombinases  | 
RecQ Helicases  | 
Recall use Mental Recall  | 
Receiver Operating Characteristic use ROC Curve  | 
Receptive Aphasia use Aphasia, Wernicke  | 
Receptor Activator of Nuclear Factor-kappa B  | 
Receptor Aggregation  | 
Receptor Cross-Talk  | 
Receptor Down-Regulation use Down-Regulation  | 
Receptor Protein-Tyrosine Kinases  | 
Receptor Up-Regulation use Up-Regulation  | 
Receptor, Adenosine A1  | 
Receptor, Adenosine A2A  | 
Receptor, Adenosine A2B  | 
Receptor, Adenosine A3  | 
Receptor, Anaphylatoxin C5a  | 
Receptor, Angiotensin II Type 2 use Receptor, Angiotensin, Type 2  | 
Receptor, Angiotensin, Type 1  | 
Receptor, Angiotensin, Type 1a use Receptor, Angiotensin, Type 1  | 
Receptor, Angiotensin, Type 1b use Receptor, Angiotensin, Type 1  | 
Receptor, Angiotensin, Type 2  | 
Receptor, Apolipoprotein E use LDL-Receptor Related Protein 1  | 
Receptor, Bradykinin B1  | 
Receptor, Bradykinin B2  | 
Receptor, CSF-1 use Receptor, Macrophage Colony-Stimulating Factor  | 
Receptor, Cannabinoid, CB1  | 
Receptor, Cannabinoid, CB2  | 
Receptor, Cholecystokinin A  | 
Receptor, Cholecystokinin B  | 
Receptor, Ciliary Neurotrophic Factor  | 
Receptor, Complement 3 use Macrophage-1 Antigen  | 
Receptor, Complement 5a use Receptor, Anaphylatoxin C5a  | 
Receptor, EGF use Receptor, Epidermal Growth Factor  | 
Receptor, Endothelin A  | 
Receptor, Endothelin B  | 
Receptor, Endothelin B, Type 2 use Receptor, Endothelin B  | 
Receptor, EphA1  | 
Receptor, EphA2  | 
Receptor, EphA3  | 
Receptor, EphA4  | 
Receptor, EphA5  | 
Receptor, EphA6  | 
Receptor, EphA7  | 
Receptor, EphA8  | 
Receptor, EphB1  | 
Receptor, EphB2  | 
Receptor, EphB3  | 
Receptor, EphB4  | 
Receptor, EphB5  | 
Receptor, EphB6  | 
Receptor, Epidermal Growth Factor  | 
Receptor, Fibroblast Growth Factor, Type 1  | 
Receptor, Fibroblast Growth Factor, Type 2  | 
Receptor, Fibroblast Growth Factor, Type 3  | 
Receptor, Fibroblast Growth Factor, Type 4  | 
Receptor, Fibroblast Growth Factor, Type 5  | 
Receptor, Galanin, Type 1  | 
Receptor, Galanin, Type 2  | 
Receptor, Galanin, Type 3  | 
Receptor, IGF Type 1  | 
Receptor, IGF Type 2  | 
Receptor, IGF-I use Receptor, IGF Type 1  | 
Receptor, IGF-II use Receptor, IGF Type 2  | 
Receptor, Insulin  | 
Receptor, Insulin-Like Growth Factor I use Receptor, IGF Type 1  | 
Receptor, Insulin-Like Growth Factor II use Receptor, IGF Type 2  | 
Receptor, Insulin-Like Growth Factor Type 1 use Receptor, IGF Type 1  | 
Receptor, Insulin-Like Growth Factor Type 2 use Receptor, IGF Type 2  | 
Receptor, Interferon alpha-beta  | 
Receptor, Interleukin-13 alpha2 use Interleukin-13 Receptor alpha2 Subunit  | 
Receptor, Interleukin-4, 13 use Receptors, Interleukin-4, Type II  | 
Receptor, Macrophage Colony-Stimulating Factor  | 
Receptor, Mannose-6-Phosphate use Receptor, IGF Type 2  | 
Receptor, Melanocortin, Type 1  | 
Receptor, Melanocortin, Type 2  | 
Receptor, Melanocortin, Type 3  | 
Receptor, Melanocortin, Type 4  | 
Receptor, Melatonin, MT1  | 
Receptor, Melatonin, MT2  | 
Receptor, Muscarinic M1  | 
Receptor, Muscarinic M2  | 
Receptor, Muscarinic M3  | 
Receptor, Muscarinic M4  | 
Receptor, Muscarinic M5  | 
Receptor, Nerve Growth Factor  | 
Receptor, Neurotrophic Tyrosine Kinase Type 1 use Receptor, trkA  | 
Receptor, Neurotrophic Tyrosine-Kinase Type 2 use Receptor, trkB  | 
Receptor, Neurotrophic-Tyrosine-Kinase Type 3 use Receptor, trkC  | 
Receptor, Notch1  | 
Receptor, Notch2  | 
Receptor, PAR-1  | 
Receptor, PAR-2  | 
Receptor, PDGF alpha use Receptor, Platelet-Derived Growth Factor alpha  | 
Receptor, PDGF beta use Receptor, Platelet-Derived Growth Factor beta  | 
Receptor, Parathyroid Hormone, Type 1  | 
Receptor, Parathyroid Hormone, Type 2  | 
Receptor, Platelet-Derived Growth Factor alpha  | 
Receptor, Platelet-Derived Growth Factor beta  | 
Receptor, Serotonin, 5-HT1A  | 
Receptor, Serotonin, 5-HT1B  | 
Receptor, Serotonin, 5-HT1D  | 
Receptor, Serotonin, 5-HT2A  | 
Receptor, Serotonin, 5-HT2B  | 
Receptor, Serotonin, 5-HT2C  | 
Receptor, Stem Cell Factor use Proto-Oncogene Proteins c-kit  | 
Receptor, TGF-alpha use Receptor, Epidermal Growth Factor  | 
Receptor, TIE-1  | 
Receptor, TIE-2  | 
Receptor, Transforming-Growth Factor alpha use Receptor, Epidermal Growth Factor  | 
Receptor, Urogastrone use Receptor, Epidermal Growth Factor  | 
Receptor, alpha-2 Macroglobulin use LDL-Receptor Related Protein 1  | 
Receptor, erbB-2  | 
Receptor, erbB-3  | 
Receptor, neu use Receptor, erbB-2  | 
Receptor, trkA  | 
Receptor, trkB  | 
Receptor, trkC  | 
Receptor-CD3 Complex, Antigen, T-Cell  | 
Receptor-Interacting Protein Serine-Threonine Kinase 2  | 
Receptor-Interacting Protein Serine-Threonine Kinases  | 
Receptor-Like Protein Tyrosine Phosphatases  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 1  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 2  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 2A use Receptor-Like Protein Tyrosine Phosphatases, Class 2  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 2B use Receptor-Like Protein Tyrosine Phosphatases, Class 2  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 3  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 4  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 5  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 6 use Receptor-Like Protein Tyrosine Phosphatases, Class 1  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 7  | 
Receptor-Like Protein Tyrosine Phosphatases, Class 8  | 
Receptor-Mediated Signal Transduction use Signal Transduction  | 
Receptor-Regulated Smad Proteins use Smad Proteins, Receptor-Regulated  | 
Receptors alpha, Thyroid Hormone use Thyroid Hormone Receptors alpha  | 
Receptors beta, Thyroid Hormone use Thyroid Hormone Receptors beta  | 
Receptors, ACTH use Receptors, Corticotropin  | 
Receptors, ADP use Receptors, Purinergic P2  | 
Receptors, AH use Receptors, Aryl Hydrocarbon  | 
Receptors, AMPA  | 
Receptors, ANF use Receptors, Atrial Natriuretic Factor  | 
Receptors, ATP use Receptors, Purinergic P2  | 
Receptors, Acetylcholine use Receptors, Cholinergic  | 
Receptors, Adenosine use Receptors, Purinergic P1  | 
Receptors, Adenosine A2  | 
Receptors, Adipokine  | 
Receptors, Adiponectin  | 
Receptors, Adrenergic  | 
Receptors, Adrenergic, alpha  | 
Receptors, Adrenergic, alpha-1  | 
Receptors, Adrenergic, alpha-2  | 
Receptors, Adrenergic, beta  | 
Receptors, Adrenergic, beta-1  | 
Receptors, Adrenergic, beta-2  | 
Receptors, Adrenergic, beta-3  | 
Receptors, Adrenocorticotropic Hormone use Receptors, Corticotropin  | 
Receptors, Albumin  | 
Receptors, Aldosterone  | 
Receptors, Amino Acid  | 
Receptors, Androgen  | 
Receptors, Angiotensin  | 
Receptors, Antigen  | 
Receptors, Antigen, B-Cell  | 
Receptors, Antigen, T-Cell  | 
Receptors, Antigen, T-Cell, alpha-beta  | 
Receptors, Antigen, T-Cell, gamma-delta  | 
Receptors, Aryl Hydrocarbon  | 
Receptors, Atrial Natriuretic Factor  | 
Receptors, Atriopeptin use Receptors, Atrial Natriuretic Factor  | 
Receptors, Benzodiazepine use Receptors, GABA-A  | 
Receptors, Benzodiazepine-GABA use Receptors, GABA-A  | 
Receptors, Biogenic Amine  | 
Receptors, Bombesin  | 
Receptors, Bradykinin  | 
Receptors, C3b use Receptors, Complement 3b  | 
Receptors, C3d use Receptors, Complement 3d  | 
Receptors, CCK use Receptors, Cholecystokinin  | 
Receptors, CCR  | 
Receptors, CCR1  | 
Receptors, CCR10  | 
Receptors, CCR2  | 
Receptors, CCR3  | 
Receptors, CCR4  | 
Receptors, CCR5  | 
Receptors, CCR6  | 
Receptors, CCR7  | 
Receptors, CCR8  | 
Receptors, CD4 use Antigens, CD4  | 
Receptors, CGRP use Receptors, Calcitonin Gene-Related Peptide  | 
Receptors, CR1 use Receptors, Complement 3b  | 
Receptors, CR2 use Receptors, Complement 3d  | 
Receptors, CRH use Receptors, Corticotropin-Releasing Hormone  | 
Receptors, CXCR  | 
Receptors, CXCR1 use Receptors, Interleukin-8A  | 
Receptors, CXCR2 use Receptors, Interleukin-8B  | 
Receptors, CXCR3  | 
Receptors, CXCR4  | 
Receptors, CXCR5  | 
Receptors, Caerulein use Receptors, Cholecystokinin  | 
Receptors, Calcitonin  | 
Receptors, Calcitonin Gene-Related Peptide  | 
Receptors, Calcitriol  | 
Receptors, Calcium Channel Blocker use Calcium Channels  | 
Receptors, Calcium-Sensing  | 
Receptors, Cannabinoid  | 
Receptors, Catecholamine  | 
Receptors, Cell Surface  | 
Receptors, Chemokine  | 
Receptors, Cholecystokinin  | 
Receptors, Cholinergic  | 
Receptors, Chorionic Gonadotropin use Receptors, LH  | 
Receptors, Collagen  | 
Receptors, Colony-Stimulating Factor  | 
Receptors, Complement  | 
Receptors, Complement 3b  | 
Receptors, Complement 3d  | 
Receptors, Concanavalin A  | 
Receptors, Corticosteroid use Receptors, Steroid  | 
Receptors, Corticotropin  | 
Receptors, Corticotropin-Releasing Hormone  | 
Receptors, Cyclic AMP  | 
Receptors, Cytoadhesin  | 
Receptors, Cytokine  | 
Receptors, Cytoplasmic and Nuclear  | 
Receptors, Death Domain  | 
Receptors, Diazepam use Receptors, GABA-A  | 
Receptors, Dihydropyridine use Calcium Channels, L-Type  | 
Receptors, Diiodotyrosine use Receptors, Thyroid Hormone  | 
Receptors, Dioxin use Receptors, Aryl Hydrocarbon  | 
Receptors, Dopamine  | 
Receptors, Dopamine D1  | 
Receptors, Dopamine D2  | 
Receptors, Dopamine D3  | 
Receptors, Dopamine D4  | 
Receptors, Dopamine D5  | 
Receptors, Drug  | 
Receptors, Ectodysplasin  | 
Receptors, Edar use Edar Receptor  | 
Receptors, Eicosanoid  | 
Receptors, Endogenous Substances use Receptors, Cell Surface  | 
Receptors, Endorphin use Receptors, Opioid  | 
Receptors, Endothelin  | 
Receptors, Endothelium-Derived Vasoconstrictor Factor use Receptors, Endothelin  | 
Receptors, Enkephalin use Receptors, Opioid  | 
Receptors, Eph Family  | 
Receptors, Epidermal Growth Factor-Urogastrone use Receptor, Epidermal Growth Factor  | 
Receptors, Epinephrine use Receptors, Adrenergic  | 
Receptors, Epoprostenol  | 
Receptors, Erythropoietin  | 
Receptors, Estradiol  | 
Receptors, Estrogen  | 
Receptors, Excitatory Amino Acid use Receptors, Glutamate  | 
Receptors, Extracellular Matrix Glycoprotein use Receptors, Cytoadhesin  | 
Receptors, FGF use Receptors, Fibroblast Growth Factor  | 
Receptors, FSH  | 
Receptors, Fc  | 
Receptors, Fc epsilon use Receptors, IgE  | 
Receptors, Fc gamma use Receptors, IgG  | 
Receptors, Fibrinogen  | 
Receptors, Fibroblast Growth Factor  | 
Receptors, Fibronectin  | 
Receptors, Follicle-Stimulating Hormone use Receptors, FSH  | 
Receptors, Formyl Peptide  | 
Receptors, G-Protein-Coupled  | 
Receptors, GABA  | 
Receptors, GABA-A  | 
Receptors, GABA-B  | 
Receptors, GABA-Benzodiazepine use Receptors, GABA-A  | 
Receptors, Galanin  | 
Receptors, Gastrin use Receptor, Cholecystokinin B  | 
Receptors, Gastrin-Releasing Peptide use Receptors, Bombesin  | 
Receptors, Gastrointestinal Hormone  | 
Receptors, Gastrointestinal Peptides use Receptors, Gastrointestinal Hormone  | 
Receptors, Ghrelin  | 
Receptors, Glucagon  | 
Receptors, Glucocorticoid  | 
Receptors, Glutamate  | 
Receptors, Glutamate, Metabotropic use Receptors, Metabotropic Glutamate  | 
Receptors, Glycine  | 
Receptors, GnRH use Receptors, LHRH  | 
Receptors, Gonadoliberin use Receptors, LHRH  | 
Receptors, Gonadorelin use Receptors, LHRH  | 
Receptors, Gonadotropin  | 
Receptors, Granulocyte Colony-Stimulating Factor  | 
Receptors, Granulocyte-Macrophage Colony-Stimulating Factor  | 
Receptors, Growth Factor  | 
Receptors, Growth Hormone use Receptors, Somatotropin  | 
Receptors, Guanylate Cyclase-Coupled  | 
Receptors, HIV  | 
Receptors, Hematopoietic Growth Factors use Receptors, Colony-Stimulating Factor  | 
Receptors, Histamine  | 
Receptors, Histamine H1  | 
Receptors, Histamine H2  | 
Receptors, Histamine H3  | 
Receptors, Human Chorionic Gonadotropin use Receptors, LH  | 
Receptors, Hyaluronan use Antigens, CD44  | 
Receptors, Hypothalamic Release-Inhibiting Hormones use Receptors, Pituitary Hormone-Regulating Hormone  | 
Receptors, Hypothalamic Releasing Hormones use Receptors, Pituitary Hormone-Regulating Hormone  | 
Receptors, IL-1 use Receptors, Interleukin-1  | 
Receptors, IL-10 use Receptors, Interleukin-10  | 
Receptors, IL-2 use Receptors, Interleukin-2  | 
Receptors, IL-3 use Receptors, Interleukin-3  | 
Receptors, IL-4 use Receptors, Interleukin-4  | 
Receptors, IL-6 use Receptors, Interleukin-6  | 
Receptors, IL-7 use Receptors, Interleukin-7  | 
Receptors, IL-9 use Receptors, Interleukin-9  | 
Receptors, IgE  | 
Receptors, IgG  | 
Receptors, Imidazoline-Guanidinium use Imidazoline Receptors  | 
Receptors, Immunologic  | 
Receptors, Insulin-Like Growth Factors use Receptors, Somatomedin  | 
Receptors, Interferon  | 
Receptors, Interleukin  | 
Receptors, Interleukin Common gamma Chain use Interleukin Receptor Common gamma Subunit  | 
Receptors, Interleukin-1  | 
Receptors, Interleukin-1 Type I  | 
Receptors, Interleukin-1 Type II  | 
Receptors, Interleukin-10  | 
Receptors, Interleukin-11  | 
Receptors, Interleukin-12  | 
Receptors, Interleukin-13  | 
Receptors, Interleukin-15  | 
Receptors, Interleukin-16  | 
Receptors, Interleukin-17  | 
Receptors, Interleukin-18  | 
Receptors, Interleukin-2  | 
Receptors, Interleukin-21  | 
Receptors, Interleukin-3  | 
Receptors, Interleukin-4  | 
Receptors, Interleukin-4, 13 use Receptors, Interleukin-4, Type II  | 
Receptors, Interleukin-4, Type I  | 
Receptors, Interleukin-4, Type II  | 
Receptors, Interleukin-5  | 
Receptors, Interleukin-6  | 
Receptors, Interleukin-7  | 
Receptors, Interleukin-8  | 
Receptors, Interleukin-8A  | 
Receptors, Interleukin-8B  | 
Receptors, Interleukin-9  | 
Receptors, Interstitial Cell-Stimulating Hormone use Receptors, LH  | 
Receptors, Invertebrate Peptide  | 
Receptors, KIR  | 
Receptors, KIR2DL1  | 
Receptors, KIR2DL2  | 
Receptors, KIR2DL3  | 
Receptors, KIR2DL4  | 
Receptors, KIR2DL5  | 
Receptors, KIR3DL1  | 
Receptors, KIR3DL2  | 
Receptors, KIR3DS1  | 
Receptors, Kainate use Receptors, Kainic Acid  | 
Receptors, Kainic Acid  | 
Receptors, LDL  | 
Receptors, LH  | 
Receptors, LHRH  | 
Receptors, Laminin  | 
Receptors, Lectin use Receptors, Mitogen  | 
Receptors, Leptin  | 
Receptors, Leukemia Inhibitory Factor use Receptors, OSM-LIF  | 
Receptors, Leukocyte-Adhesion  | 
Receptors, Leukotriene  | 
Receptors, Leukotriene B4  | 
Receptors, Lipopolysaccharide use Antigens, CD14  | 
Receptors, Lipoprotein  | 
Receptors, Lipoxin  | 
Receptors, Low Density Lipoprotein use Receptors, LDL  | 
Receptors, Luliberin use Receptors, LHRH  | 
Receptors, Luteinizing Hormone use Receptors, LH  | 
Receptors, Lymphocyte Homing  | 
Receptors, Lysophosphatidic Acid  | 
Receptors, Lysophospholipid  | 
Receptors, Lysosphingolipid  | 
Receptors, Mating Factor  | 
Receptors, Melanocortin  | 
Receptors, Melatonin  | 
Receptors, Menotropin use Receptors, Gonadotropin  | 
Receptors, Metabotropic Glutamate  | 
Receptors, Mineralocorticoid  | 
Receptors, Mitogen  | 
Receptors, Morphine use Receptors, Opioid, mu  | 
Receptors, Muscarinic  | 
Receptors, Muscarinic M4 use Receptor, Muscarinic M4  | 
Receptors, Muscimol use Receptors, GABA-A  | 
Receptors, N-Acetylglucosamine  | 
Receptors, N-Methyl-D-Aspartate  | 
Receptors, NGF use Receptors, Nerve Growth Factor  | 
Receptors, NK-2 use Receptors, Neurokinin-2  | 
Receptors, NK-3 use Receptors, Neurokinin-3  | 
Receptors, NMDA use Receptors, N-Methyl-D-Aspartate  | 
Receptors, Narcotic use Receptors, Opioid  | 
Receptors, Nerve Growth Factor  | 
Receptors, Neural use Receptors, Sensory  | 
Receptors, Neurohumor use Receptors, Neurotransmitter  | 
Receptors, Neurokinin-1  | 
Receptors, Neurokinin-2  | 
Receptors, Neurokinin-3  | 
Receptors, Neuromedin B use Receptors, Bombesin  | 
Receptors, Neuropeptide  | 
Receptors, Neuropeptide Y  | 
Receptors, Neurotensin  | 
Receptors, Neurotransmitter  | 
Receptors, Neurotrophin use Receptors, Nerve Growth Factor  | 
Receptors, Nicotinic  | 
Receptors, Norepinephrine use Receptors, Adrenergic  | 
Receptors, Notch  | 
Receptors, OSM-LIF  | 
Receptors, OX40  | 
Receptors, Odorant  | 
Receptors, Oncostatin M  | 
Receptors, Oncostatin M, Type II  | 
Receptors, Opiate use Receptors, Opioid  | 
Receptors, Opioid  | 
Receptors, Opioid, delta  | 
Receptors, Opioid, kappa  | 
Receptors, Opioid, mu  | 
Receptors, Opioid, sigma use Receptors, sigma  | 
Receptors, Oxidized LDL  | 
Receptors, Oxytocin  | 
Receptors, PCP use Receptors, Phencyclidine  | 
Receptors, PDGF use Receptors, Platelet-Derived Growth Factor  | 
Receptors, Pain use Nociceptors  | 
Receptors, Pancreatic Hormone  | 
Receptors, Pancreozymin use Receptors, Cholecystokinin  | 
Receptors, Parathyroid Hormone  | 
Receptors, Pattern Recognition  | 
Receptors, Peptide  | 
Receptors, Peptide, Invertebrate use Receptors, Invertebrate Peptide  | 
Receptors, Phencyclidine  | 
Receptors, Pheromone  | 
Receptors, Phospholipase A2  | 
Receptors, Pituitary Adenylate Cyclase-Activating Peptide, Type II use Receptors, Vasoactive Intestinal Polypeptide, Type I  | 
Receptors, Pituitary Adenylate Cyclase-Activating Peptide, Type III use Receptors, Vasoactive Intestinal Peptide, Type II  | 
Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide  | 
Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I  | 
Receptors, Pituitary Hormone  | 
Receptors, Pituitary Hormone Release Inhibiting Hormones use Receptors, Pituitary Hormone-Regulating Hormone  | 
Receptors, Pituitary Hormone-Regulating Hormone  | 
Receptors, Pituitary Hormone-Releasing Hormone use Receptors, Pituitary Hormone-Regulating Hormone  | 
Receptors, Platelet-Derived Growth Factor  | 
Receptors, Polymeric Immunoglobulin  | 
Receptors, Presynaptic  | 
Receptors, Progesterone  | 
Receptors, Progestin use Receptors, Progesterone  | 
Receptors, Prolactin  | 
Receptors, Prostacyclin use Receptors, Epoprostenol  | 
Receptors, Prostaglandin  | 
Receptors, Prostaglandin E  | 
Receptors, Prostaglandin H2 use Receptors, Thromboxane A2, Prostaglandin H2  | 
Receptors, Protein-Tyrosine Kinase use Receptor Protein-Tyrosine Kinases  | 
Receptors, Proteinase-Activated  | 
Receptors, Protirelin use Receptors, Thyrotropin-Releasing Hormone  | 
Receptors, Pulmonary Stretch use Pulmonary Stretch Receptors  | 
Receptors, Purinergic  | 
Receptors, Purinergic P1  | 
Receptors, Purinergic P2  | 
Receptors, Retinoic Acid  | 
Receptors, SRS-A use Receptors, Leukotriene  | 
Receptors, Scavenger  | 
Receptors, Sensory  | 
Receptors, Serotonin  | 
Receptors, Serotonin, 5-HT1  | 
Receptors, Serotonin, 5-HT2  | 
Receptors, Serotonin, 5-HT3  | 
Receptors, Serotonin, 5-HT4  | 
Receptors, Serotonin, 5-HT4L use Receptors, Serotonin, 5-HT4  | 
Receptors, Serotonin, 5-HT4S use Receptors, Serotonin, 5-HT4  | 
Receptors, Sincalide use Receptors, Cholecystokinin  | 
Receptors, Somatomedin  | 
Receptors, Somatostatin  | 
Receptors, Somatotropin  | 
Receptors, Somatotropin Release Inhibiting Hormone use Receptors, Somatostatin  | 
Receptors, Steroid  | 
Receptors, Stretch use Mechanoreceptors  | 
Receptors, Stretch, Arterial use Pressoreceptors  | 
Receptors, Stretch, Muscle use Muscle Spindles  | 
Receptors, Stretch, Pulmonary use Pulmonary Stretch Receptors  | 
Receptors, Stretch, Vascular use Pressoreceptors  | 
Receptors, Substance K use Receptors, Neurokinin-2  | 
Receptors, Substance P use Receptors, Neurokinin-1  | 
Receptors, Synaptic use Receptors, Neurotransmitter  | 
Receptors, T-Cell Growth Factor use Receptors, Interleukin-2  | 
Receptors, TGF-beta use Receptors, Transforming Growth Factor beta  | 
Receptors, TIE  | 
Receptors, TNF-Related Apoptosis-Inducing Ligand  | 
Receptors, TRAIL use Receptors, TNF-Related Apoptosis-Inducing Ligand  | 
Receptors, TRH use Receptors, Thyrotropin-Releasing Hormone  | 
Receptors, TXA2-PGH2 use Receptors, Thromboxane A2, Prostaglandin H2  | 
Receptors, Tachykinin  | 
Receptors, Thrombin  | 
Receptors, Thrombopoietin  | 
Receptors, Thrombospondin use Antigens, CD36  | 
Receptors, Thromboxane  | 
Receptors, Thromboxane A2 use Receptors, Thromboxane A2, Prostaglandin H2  | 
Receptors, Thromboxane A2, Prostaglandin H2  | 
Receptors, Thyroid Hormone  | 
Receptors, Thyroid Stimulating Hormone use Receptors, Thyrotropin  | 
Receptors, Thyroliberin use Receptors, Thyrotropin-Releasing Hormone  | 
Receptors, Thyrotropin  | 
Receptors, Thyrotropin-Releasing Hormone  | 
Receptors, Thyroxine use Receptors, Thyroid Hormone  | 
Receptors, Toll-Like use Toll-Like Receptors  | 
Receptors, Transferrin  | 
Receptors, Transforming Growth Factor beta  | 
Receptors, Triiodothyronine use Receptors, Thyroid Hormone  | 
Receptors, Tryptamine use Receptors, Serotonin  | 
Receptors, Tumor Necrosis Factor  | 
Receptors, Tumor Necrosis Factor, Member 10 use Receptors, TNF-Related Apoptosis-Inducing Ligand  | 
Receptors, Tumor Necrosis Factor, Member 10b use Receptors, TNF-Related Apoptosis-Inducing Ligand  | 
Receptors, Tumor Necrosis Factor, Member 10c  | 
Receptors, Tumor Necrosis Factor, Member 11a use Receptor Activator of Nuclear Factor-kappa B  | 
Receptors, Tumor Necrosis Factor, Member 11b use Osteoprotegerin  | 
Receptors, Tumor Necrosis Factor, Member 14  | 
Receptors, Tumor Necrosis Factor, Member 17 use B-Cell Maturation Antigen  | 
Receptors, Tumor Necrosis Factor, Member 18 use Glucocorticoid-Induced TNFR-Related Protein  | 
Receptors, Tumor Necrosis Factor, Member 1A use Receptors, Tumor Necrosis Factor, Type I  | 
Receptors, Tumor Necrosis Factor, Member 1B use Receptors, Tumor Necrosis Factor, Type II  | 
Receptors, Tumor Necrosis Factor, Member 25  | 
Receptors, Tumor Necrosis Factor, Member 4 use Receptors, OX40  | 
Receptors, Tumor Necrosis Factor, Member 6b  | 
Receptors, Tumor Necrosis Factor, Type I  | 
Receptors, Tumor Necrosis Factor, Type II  | 
Receptors, V1 use Receptors, Vasopressin  | 
Receptors, V2 use Receptors, Vasopressin  | 
Receptors, VIP use Receptors, Vasoactive Intestinal Peptide  | 
Receptors, VLA use Receptors, Very Late Antigen  | 
Receptors, VLA-5 use Integrin alpha5beta1  | 
Receptors, Vascular Endothelial Growth Factor  | 
Receptors, Vasoactive Intestinal Peptide  | 
Receptors, Vasoactive Intestinal Peptide, Type II  | 
Receptors, Vasoactive Intestinal Polypeptide, Type I  | 
Receptors, Vasopressin  | 
Receptors, Very Late Antigen  | 
Receptors, Virus  | 
Receptors, Vitamin D use Receptors, Calcitriol  | 
Receptors, Vitronectin  | 
Receptors, alpha-1 Adrenergic use Receptors, Adrenergic, alpha-1  | 
Receptors, alpha-2 Adrenergic use Receptors, Adrenergic, alpha-2  | 
Receptors, alpha-Adrenergic use Receptors, Adrenergic, alpha  | 
Receptors, beta-1 Adrenergic use Receptors, Adrenergic, beta-1  | 
Receptors, beta-2 Adrenergic use Receptors, Adrenergic, beta-2  | 
Receptors, beta-3 Adrenergic use Receptors, Adrenergic, beta-3  | 
Receptors, beta-Adrenergic use Receptors, Adrenergic, beta  | 
Receptors, delta use Receptors, Opioid, delta  | 
Receptors, delta Opioid use Receptors, Opioid, delta  | 
Receptors, fas use Antigens, CD95  | 
Receptors, gamma-Aminobutyric Acid use Receptors, GABA  | 
Receptors, kappa use Receptors, Opioid, kappa  | 
Receptors, kappa Opioid use Receptors, Opioid, kappa  | 
Receptors, mu use Receptors, Opioid, mu  | 
Receptors, mu Opioid use Receptors, Opioid, mu  | 
Receptors, sigma  | 
Receptors, sigma Opioid use Receptors, sigma  | 
Receptosomes use Endosomes  | 
Rechargable Batteries use Electric Batteries  | 
Recipes use Cookery  | 
Reciprocating Tachycardia use Tachycardia, Reciprocating  | 
Recirculated Water use Water Recirculation  | 
Recklinghausen Disease of Nerve use Neurofibromatosis 1  | 
Recklinghausen's Disease of Bone use Osteitis Fibrosa Cystica  | 
Reclaimed Water use Water Recycling  | 
Recognition (Psychology)  | 
Recognized Refugee  | 
Recombinant Colony-Stimulating Factors use Colony-Stimulating Factors, Recombinant  | 
Recombinant DNA use DNA, Recombinant  | 
Recombinant DNA Vaccines use Vaccines, DNA  | 
Recombinant Erythropoietin use Erythropoietin, Recombinant  | 
Recombinant Fusion Proteins  | 
Recombinant G-CSF use Granulocyte Colony Stimulating Factor, Recombinant  | 
Recombinant GM-CSF use Granulocyte Macrophage Colony-Stimulating Factors, Recombinant  | 
Recombinant Granulocyte Colony Stimulating Factor use Granulocyte Colony Stimulating Factor, Recombinant  | 
Recombinant Granulocyte-Macrophage Colony-Stimulating Factors use Granulocyte Macrophage Colony-Stimulating Factors, Recombinant  | 
Recombinant Growth Hormone use Growth Hormone  | 
Recombinant Interferon alfa-2a use Interferon Alfa-2a  | 
Recombinant Interferon alfa-2b use Interferon Alfa-2b  | 
Recombinant Interferon alfa-2c use Interferon Alfa-2c  | 
Recombinant Interferon-gamma use Interferon-gamma, Recombinant  | 
Recombinant Proteins  | 
Recombinant-Methionyl Human Granulocyte Colony-Stimulating Factor use Filgrastim  | 
Recombinases  | 
Recombination, Genetic  | 
Recombination, Interspecies use Gene Transfer, Horizontal  | 
Recombination-Activating Genes-1 use Genes, RAG-1  | 
Recommended Dietary Allowances use Nutrition Policy  | 
Reconstruction  | 
Reconstructive Surgical Procedures  | 
Reconstructive Surgical Procedures, Cosmetic use Reconstructive Surgical Procedures  | 
Recontact use Duty to Recontact  | 
Record Linkage, Medical use Medical Record Linkage  | 
Records Control use Forms and Records Control  | 
Records as Topic  | 
Recoverin  | 
Recovery use Recycling (Environmental Health)  | 
Recovery Period, Anesthesia use Anesthesia Recovery Period  | 
Recovery Room  | 
Recovery Room Nursing use Postanesthesia Nursing  | 
Recovery of Function  | 
Recreation  | 
Recreation and Leisure Activities Centers use Centers of Connivance and Leisure  | 
Recreation and Leisure Activities Centres use Centers of Connivance and Leisure  | 
Recreational Drugs use Street Drugs  | 
Recreational Water  | 
Recreational Zones  | 
Recrudescence use Recurrence  | 
Recruitment Detection, Audiologic  | 
Recruitment, Loudness use Hyperacusis  | 
Recruitment, Neurophysiological  | 
Rectal Cancer use Rectal Neoplasms  | 
Rectal Diseases  | 
Rectal Drug Administration use Administration, Rectal  | 
Rectal Fistula  | 
Rectal Gland use Salt Gland  | 
Rectal Neoplasms  | 
Rectal Prolapse  | 
Rectal Suppositories use Suppositories  | 
Rectal Surgery (Specialty) use Colorectal Surgery  | 
Rectal Tumors use Rectal Neoplasms  | 
Rectocele  | 
Rectocolitis use Proctocolitis  | 
Rectocolitis, Hemorrhagic use Proctocolitis  | 
Rectocolitis, Ulcerative use Proctocolitis  | 
Rectosigmoiditis use Proctocolitis  | 
Rectovaginal Fistula  | 
Rectum  | 
Rectus Abdominis  | 
Recurrence  | 
Recurrent Laryngeal Nerve  | 
Recycling use Conservation of Natural Resources  | 
Recycling (Environmental Health)  | 
Recycling, Equipment use Equipment Reuse  | 
Red Blood Cell Count use Erythrocyte Count  | 
Red Blood Cell Membrane Sialoglycoprotein use Glycophorin  | 
Red Blood Cell Transfusion use Erythrocyte Transfusion  | 
Red Blood Cells use Erythrocytes  | 
Red Bryony use Bryonia dioica  | 
Red Bugs use Trombiculidae  | 
Red Cell Ghost use Erythrocyte Membrane  | 
Red Cell Indices use Erythrocyte Indices  | 
Red Cell Mass use Erythrocyte Volume  | 
Red Cell Substitutes use Blood Substitutes  | 
Red Cross  | 
Red Dye No. 2 use Amaranth Dye  | 
Red Marrow use Bone Marrow  | 
Red Monkey use Erythrocebus patas  | 
Red Nucleus  | 
Red Pepper use Capsicum  | 
Red Quina use China officinalis  | 
Red Sea use Indian Ocean  | 
Red Tide use Dinoflagellida  | 
Red clover use Trifolium  | 
Red-Cell Aplasia, Pure  | 
Redistributive Justice use Equity in the Resource Allocation  | 
Redox use Oxidation-Reduction  | 
Reduced Gravity use Hypogravity  | 
Reducing Agents  | 
Reductants use Reducing Agents  | 
Reductases use Oxidoreductases  | 
Reduction Gear use Water and Sewerage System Accessories  | 
Reductive Pentose Phosphate Cycle use Photosynthesis  | 
Reduviidae  | 
Redwood use Sequoia  | 
Reed-Sternberg Cells  | 
Reef  | 
Reeler Mice use Mice, Neurologic Mutants  | 
Reference Books  | 
Reference Books, Medical  | 
Reference Centers use Information Services  | 
Reference Drugs  | 
Reference Ranges use Reference Values  | 
Reference Standards  | 
Reference Values  | 
Referral and Consultation  | 
Referred Pain use Pain, Referred  | 
Refetoff Syndrome use Thyroid Hormone Resistance Syndrome  | 
Refined Sugar use Sugar  | 
Refining  | 
Refitting use Remodeling  | 
Reflex  | 
Reflex Epilepsy use Epilepsy, Reflex  | 
Reflex Epilepsy, Audiogenic use Epilepsy, Reflex  | 
Reflex Epilepsy, Cursive (Running) use Epilepsy, Reflex  | 
Reflex Epilepsy, Eating-Induced use Epilepsy, Reflex  | 
Reflex Epilepsy, Musicogenic use Epilepsy, Reflex  | 
Reflex Epilepsy, Photosensitive use Epilepsy, Reflex  | 
Reflex Epilepsy, Reading use Epilepsy, Reflex  | 
Reflex Sympathetic Dystrophy  | 
Reflex Therapy use Reflexotherapy  | 
Reflex, Abdominal  | 
Reflex, Abnormal  | 
Reflex, Acoustic  | 
Reflex, Babinski  | 
Reflex, Baroreceptor use Baroreflex  | 
Reflex, Blink use Blinking  | 
Reflex, Conditioned use Conditioning, Classical  | 
Reflex, Corneal use Blinking  | 
Reflex, Monosynaptic  | 
Reflex, Oculocardiac  | 
Reflex, Orbicularis Oculi use Blinking  | 
Reflex, Pharyngeal use Gagging  | 
Reflex, Psychogalvanic use Galvanic Skin Response  | 
Reflex, Pupillary  | 
Reflex, Stretch  | 
Reflex, Tendon use Reflex, Stretch  | 
Reflex, Vestibulo-Ocular  | 
Reflexology use Massage  | 
Reflexotherapy  | 
Reforestation  | 
Reformatories use Prisons  | 
Refraction, Ocular  | 
Refractive Errors  | 
Refractive Index use Refractometry  | 
Refractive Surgical Procedures  | 
Refractometry  | 
Refractory Anemia use Anemia, Refractory  | 
Refractory Anemia with Excess of Blasts use Anemia, Refractory, with Excess of Blasts  | 
Refractory Period, Electrophysiological  | 
Refractory Period, Neurologic use Refractory Period, Electrophysiological  | 
Refractory Period, Psychological  | 
Refrigeration  | 
Refsum Disease  | 
Refsum Disease, Infantile  | 
Refuge  | 
Refugee Camps  | 
Refugee Sur Place  | 
Refugees  | 
Refuges use Shelters  | 
Refusal of Treatment use Treatment Refusal  | 
Refusal to Participate  | 
Refusal to Treat  | 
Refuse Disposal  | 
Refuse Dumps use Open Dumps  | 
Regeneration  | 
Regeneration, Periodontal Guided Tissue use Guided Tissue Regeneration, Periodontal  | 
Regenerative Medicine  | 
Regional Agencies  | 
Regional Agreements  | 
Regional Blood Flow  | 
Regional Development  | 
Regional Health Planning  | 
Regional Hospital Planning use Hospital Planning  | 
Regional Hospital Plannings use Hospital Planning  | 
Regional Medical Programs  | 
Regional Pacts use Regional Agreements  | 
Regional Perfusion Antineoplastic Chemotherapy use Chemotherapy, Cancer, Regional Perfusion  | 
Regional Plans  | 
Regional Strategies  | 
Regional Subsidence and Cracking  | 
Registered Trademarks  | 
Registrars, Hospital use Medical Staff, Hospital  | 
Registries  | 
Regression (Psychology)  | 
Regression Analysis  | 
Regression Diagnostics use Regression Analysis  | 
Regulation of Gene Expression use Gene Expression Regulation  | 
Regulation of Gene Expression, Archaeal use Gene Expression Regulation, Archaeal  | 
Regulation of Gene Expression, Bacterial use Gene Expression Regulation, Bacterial  | 
Regulation of Gene Expression, Developmental use Gene Expression Regulation, Developmental  | 
Regulation of Gene Expression, Embryologic use Gene Expression Regulation, Developmental  | 
Regulation of Gene Expression, Enzymologic use Gene Expression Regulation, Enzymologic  | 
Regulation of Gene Expression, Fungal use Gene Expression Regulation, Fungal  | 
Regulation of Gene Expression, Leukemic use Gene Expression Regulation, Leukemic  | 
Regulation of Gene Expression, Neoplastic use Gene Expression Regulation, Neoplastic  | 
Regulation of Gene Expression, Plant use Gene Expression Regulation, Plant  | 
Regulation of Gene Expression, Viral use Gene Expression Regulation, Viral  | 
Regulations  | 
Regulations for Policy Organizations  | 
Regulator Locus, araC use Genes, araC  | 
Regulators of G-Protein Signaling Proteins use RGS Proteins  | 
Regulators, G-Protein Signaling use GTP-Binding Protein Regulators  | 
Regulatory Element, Transcriptional use Regulatory Elements, Transcriptional  | 
Regulatory Elements, Transcriptional  | 
Regulatory Regions, Nucleic Acid (Genetics) use Regulatory Sequences, Nucleic Acid  | 
Regulatory Sequences, Nucleic Acid  | 
Regulatory Sequences, Ribonucleic Acid  | 
Regulatory T-Lymphocytes use T-Lymphocytes, Regulatory  | 
Regulon  | 
Regurgitation, Gastric use Gastroesophageal Reflux  | 
Rehabilitation  | 
Rehabilitation Centers  | 
Rehabilitation Centers, Drug use Substance Abuse Treatment Centers  | 
Rehabilitation Nursing  | 
Rehabilitation Outcome use Treatment Outcome  | 
Rehabilitation Services  | 
Rehabilitation of Hearing Impaired  | 
Rehabilitation of Speech and Language Disorders  | 
Rehabilitation, Vocational  | 
Rehmannia  | 
Rehydration use Fluid Therapy  | 
Rehydration Solutions  | 
Rehydration, Oral use Fluid Therapy  | 
Reichel's Syndrome use Chondromatosis, Synovial  | 
Reiki use Therapeutic Touch  | 
Reimbursement Mechanisms  | 
Reimbursement, Disproportionate Share  | 
Reimbursement, Fee-for-Service use Fee-for-Service Plans  | 
Reimbursement, Health Insurance use Insurance, Health, Reimbursement  | 
Reimbursement, Incentive  | 
Reimbursement, Prospective use Prospective Payment System  | 
Reimplantation use Replantation  | 
Reimplantation, Tooth use Tooth Replantation  | 
Reindeer  | 
Reinerz Aqua  | 
Reinforced Concrete  | 
Reinforced Concrete Constructions use Reinforced Concrete  | 
Reinforced Concrete Pipes  | 
Reinforced Concrete Structures use Reinforced Concrete  | 
Reinforced Concrete Tanks  | 
Reinforcement (Psychology)  | 
Reinforcement Schedule  | 
Reinforcement, Social  | 
Reinforcement, Verbal  | 
Reinforcing Factors use Causality  | 
Reishi  | 
Rejection (Psychology)  | 
Rejuvenation  | 
Relapse use Recurrence  | 
Relapsing Fever  | 
Relapsing Fever Ticks use Ornithodoros  | 
Relapsing-Remitting Multiple Sclerosis use Multiple Sclerosis, Relapsing-Remitting  | 
Relative Biological Effectiveness  | 
Relative Risk use Risk  | 
Relative Risk (Public Health)  | 
Relative Value Scales  | 
Relative-Value Schedules use Relative Value Scales  | 
Relaxation  | 
Relaxation Techniques  | 
Relaxation Therapy use Relaxation Techniques  | 
Relaxin  | 
Released of Products use Product Release  | 
Reliability and Validity use Reproducibility of Results  | 
Relief Work  | 
Relief, Assistance and Protection in Disasters  | 
Religion  | 
Religion and Medicine  | 
Religion and Psychology  | 
Religion and Science  | 
Religion and Sex  | 
Religious Beliefs use Religion  | 
Religious Ethics use Religion  | 
Religious Hospitals use Hospitals, Religious  | 
Religious Philosophies  | 
Remantadine use Rimantadine  | 
Remedial Teaching  | 
Remediation  | 
Reminder Systems  | 
Reminyl use Galantamine  | 
Remission Induction  | 
Remission, Spontaneous  | 
Remission, Spontaneous Neoplasm use Neoplasm Regression, Spontaneous  | 
Remittent Fever use Malaria  | 
Remodeling  | 
Remote Consultation  | 
Remote Operations (Robotics) use Robotics  | 
Remote Sensors  | 
Remote Sounding  | 
Removal of Hulls Agent use Washing Agents  | 
Removal of Hulls Agents use Washing Agents  | 
Removers of Polish Nail, Cuticle and Nicotin Spot (Mechanical and Chemical Types) use Products for Nails and Cuticles  | 
Remoxipride  | 
Renal Agents  | 
Renal Aminoacidurias  | 
Renal Artery  | 
Renal Artery Obstruction  | 
Renal Artery Stenosis use Renal Artery Obstruction  | 
Renal Blood Flow use Renal Circulation  | 
Renal Blood Flow, Effective  | 
Renal Calculi use Kidney Calculi  | 
Renal Cancer use Kidney Neoplasms  | 
Renal Circulation  | 
Renal Cortical Necrosis use Kidney Cortex Necrosis  | 
Renal Dialysis  | 
Renal Dialysis Units, Hospital use Hemodialysis Units, Hospital  | 
Renal Dialysis, Home use Hemodialysis, Home  | 
Renal Disease, End-Stage use Kidney Failure, Chronic  | 
Renal Failure use Kidney Failure  | 
Renal Failure, Acute use Kidney Failure, Acute  | 
Renal Failure, Chronic use Kidney Failure, Chronic  | 
Renal Failure, End-Stage use Kidney Failure, Chronic  | 
Renal Fanconi Syndrome use Fanconi Syndrome  | 
Renal Insufficiency  | 
Renal Insufficiency, Acute  | 
Renal Insufficiency, Chronic  | 
Renal Osteodystrophy  | 
Renal Papillitis, Necrotizing use Kidney Papillary Necrosis  | 
Renal Pelvis use Kidney Pelvis  | 
Renal Plasma Flow  | 
Renal Plasma Flow, Effective  | 
Renal Replacement Therapy  | 
Renal Rickets use Renal Osteodystrophy  | 
Renal Transplantation use Kidney Transplantation  | 
Renal Tubular Acidosis use Acidosis, Renal Tubular  | 
Renal Tubular Acidosis, Type I use Acidosis, Renal Tubular  | 
Renal Tubular Acidosis, Type II use Acidosis, Renal Tubular  | 
Renal Tubular Acidosis, Type IV use Hypoaldosteronism  | 
Renal Tubular Transport, Inborn Errors  | 
Renal Veins  | 
Renaturation, Protein use Protein Renaturation  | 
Renealmia use Zingiberaceae  | 
Renewable Energy use Non Conventional Energy  | 
Renewable Resources  | 
Renewal of Functioning Authorization  | 
Renilla  | 
Renin  | 
Renin-Angiotensin System  | 
Renin-Angiotensin-Aldosterone System use Renin-Angiotensin System  | 
Renin-Substrate use Angiotensinogen  | 
Rennin use Chymosin  | 
Renography use Radioisotope Renography  | 
Reoperation  | 
Reoviridae  | 
Reoviridae Infections  | 
Reovirus 1 use Orthoreovirus, Mammalian  | 
Reovirus 2 use Orthoreovirus, Mammalian  | 
Reovirus 3 use Mammalian orthoreovirus 3  | 
Reovirus Infections use Reoviridae Infections  | 
Reoviruses, Aquatic use Reoviridae  | 
Repairing use Corrective Maintenance  | 
Repatriation  | 
Repeat Cesarean Section use Cesarean Section, Repeat  | 
Repeat-Associated siRNA use RNA, Small Interfering  | 
Reperfusion  | 
Reperfusion Injury  | 
Reperfusion Injury, Myocardial use Myocardial Reperfusion Injury  | 
Reperfusion, Myocardial use Myocardial Reperfusion  | 
Repertorial Additions  | 
Repertorial Errors  | 
Repertorial Structure  | 
Repertorial Symptoms  | 
Repertorization  | 
Repertorization, Computed  | 
Repertory  | 
Repertory Techniques use Repertorization  | 
Repertory, Barthel  | 
Repertory, Boenninghausen  | 
Repertory, Boericke  | 
Repertory, Degrees  | 
Repertory, Gentry  | 
Repertory, Hering  | 
Repertory, Kent  | 
Repertory, Kent-Eizayaga  | 
Repertory, Kishore  | 
Repertory: Abdomen Section  | 
Repertory: Back Section  | 
Repertory: Bladder Section  | 
Repertory: Chest Section  | 
Repertory: Chill Section  | 
Repertory: Cough Section  | 
Repertory: Delusions Section  | 
Repertory: Drinks and Foods Section  | 
Repertory: Ear Section  | 
Repertory: Expectoration Section  | 
Repertory: External Throat Section  | 
Repertory: Extremities Section  | 
Repertory: Eye Section  | 
Repertory: Face Section  | 
Repertory: Female Genitalia Section  | 
Repertory: Fever Section  | 
Repertory: Generalities Section  | 
Repertory: Head Section  | 
Repertory: Hearing Section  | 
Repertory: Internal Throat Section use Repertory: Throat Section  | 
Repertory: Kidneys Section  | 
Repertory: Larynx and Trachea Section  | 
Repertory: Male Genitalia Section  | 
Repertory: Mind Section  | 
Repertory: Mouth Section  | 
Repertory: Nails Section  | 
Repertory: Nose Section  | 
Repertory: Perspiration Section  | 
Repertory: Prostate Section  | 
Repertory: Rectum Section  | 
Repertory: Respiration Section  | 
Repertory: Skin Section  | 
Repertory: Sleep Section  | 
Repertory: Stomach Section  | 
Repertory: Stool Section  | 
Repertory: Taste Section  | 
Repertory: Teeth Section  | 
Repertory: Throat Section  | 
Repertory: Urethra Section  | 
Repertory: Urine Section  | 
Repertory: Vertigo Section  | 
Repertory: Vision Section  | 
Repetition Strain Injury use Cumulative Trauma Disorders  | 
Repetitive Region use Repetitive Sequences, Nucleic Acid  | 
Repetitive Sequences, Amino Acid  | 
Repetitive Sequences, Dispersed use Interspersed Repetitive Sequences  | 
Repetitive Sequences, Interspersed use Interspersed Repetitive Sequences  | 
Repetitive Sequences, Nucleic Acid  | 
Replacement Therapy, Estrogen use Estrogen Replacement Therapy  | 
Replacement Therapy, Hormone use Hormone Replacement Therapy  | 
Replantation  | 
Replantation, Tooth use Tooth Replantation  | 
Replica Techniques  | 
Replication Factor A use Replication Protein A  | 
Replication Factor A Single-Stranded DNA-Binding Protein use Replication Protein A  | 
Replication Factor C use Replication Protein C  | 
Replication Origin  | 
Replication Protein A  | 
Replication Protein C  | 
Replication Unit use Replicon  | 
Replicative Senescence use Cell Aging  | 
Replicon  | 
Reporter Genes use Genes, Reporter  | 
Repressed Memory use Repression  | 
Repression  | 
Repression-Sensitization  | 
Repression-Sensitization Scales use Repression-Sensitization  | 
Repressor Molecules use Repressor Proteins  | 
Repressor Proteins  | 
Reproducibility of Results  | 
Reproduction  | 
Reproduction, Asexual  | 
Reproductive Behavior  | 
Reproductive Control Agents  | 
Reproductive Health Services  | 
Reproductive History  | 
Reproductive Medicine  | 
Reproductive Rights  | 
Reproductive Sterilization use Sterilization, Reproductive  | 
Reproductive Techniques  | 
Reproductive Techniques, Assisted  | 
Reproductive Technology use Reproductive Techniques  | 
Reproductive Technology, Assisted use Reproductive Techniques, Assisted  | 
Reproductive and Urinary Physiology  | 
Reptilase Time use Thrombin Time  | 
Reptiles  | 
Reptilian Proteins  | 
Republic of China use Taiwan  | 
Republic of South Africa use South Africa  | 
Request for Disaster Assistance  | 
Request for Proposal use Competitive Bidding  | 
Rescue Personnel  | 
Rescue Work  | 
Rescue Workers use Rescue Personnel  | 
Rescue in Confined Spaces  | 
Research  | 
Research Design  | 
Research Embryo Creation  | 
Research Ethics use Ethics, Research  | 
Research Expenditures  | 
Research Financing  | 
Research Financing Systems  | 
Research Groups  | 
Research Institutes use Academies and Institutes  | 
Research Misconduct use Scientific Misconduct  | 
Research Personnel  | 
Research Policy Evaluation  | 
Research Priorities use Research  | 
Research Promotion  | 
Research Protocols, Clinical use Clinical Protocols  | 
Research Reports  | 
Research Subject Recruitment use Patient Selection  | 
Research Subjects  | 
Research Support as Topic  | 
Research Support, N.I.H., Extramural  | 
Research Support, N.I.H., Intramural  | 
Research Support, Non-U.S. Gov't  | 
Research Support, U.S. Gov't, Non-P.H.S.  | 
Research Support, U.S. Gov't, P.H.S.  | 
Research and Development Project Indicators  | 
Research and Development Projects  | 
Research and New Techniques  | 
Research in Health Services  | 
Research on Health Personnel use Health Manpower  | 
Research, Clinical Nursing use Clinical Nursing Research  | 
Research, Dental use Dental Research  | 
Research, Health Services use Health Services Research  | 
Research, Nursing use Nursing Research  | 
Research, Nursing Administration use Nursing Administration Research  | 
Research, Nursing Education use Nursing Education Research  | 
Research, Nursing Evaluation use Nursing Evaluation Research  | 
Research, Nursing Methodology use Nursing Methodology Research  | 
Researcher Exchange  | 
Researcher Exchange Policy  | 
Researcher Performance Evaluation Systems  | 
Researcher-Subject Relations  | 
Researchers use Research Personnel  | 
Reseda use Resedaceae  | 
Resedaceae  | 
Reserpine  | 
Reserpinum  | 
Reservoir Routing use Flood Routing  | 
Reservoirs  | 
Residence Characteristics  | 
Residence Time  | 
Residency, Dental use Internship and Residency  | 
Residency, Medical use Internship and Residency  | 
Residency, Nonmedical use Internship, Nonmedical  | 
Resident Population  | 
Residential Facilities  | 
Residential Mobility  | 
Residential Treatment  | 
Residual Cancer use Neoplasm, Residual  | 
Residual Chlorine  | 
Residual Tumor use Neoplasm, Residual  | 
Residual Volume  | 
Resin Cements  | 
Resin-Bonded Acid-Etched Fixed Partial Denture use Denture, Partial, Fixed, Resin-Bonded  | 
Resin-Bonded Bridge use Denture, Partial, Fixed, Resin-Bonded  | 
Resin-Bonded Fixed Partial Denture use Denture, Partial, Fixed, Resin-Bonded  | 
Resina itu use Itu  | 
Resins  | 
Resins, Plant  | 
Resins, Synthetic  | 
Resistance Factors use R Factors  | 
Resistance Transfer Factor use F Factor  | 
Resistance, Natural use Immunity, Natural  | 
Resistant Ovary Syndrome use Ovarian Failure, Premature  | 
Resistin  | 
Resocyanine use Hymecromone  | 
Resolutions  | 
Resolvases, Holliday Junction use Holliday Junction Resolvases  | 
Resolvases, Transposon use Transposon Resolvases  | 
Resorcinols  | 
Resorcinum  | 
Resorts use Health Resorts  | 
Resource Allocation  | 
Resource Guides  | 
Resource-Based Relative Value Scale use Relative Value Scales  | 
Resources Management  | 
Resources for Research  | 
Respiration  | 
Respiration Disorders  | 
Respiration, Artificial  | 
Respiration, Cell use Cell Respiration  | 
Respirator Weaning use Ventilator Weaning  | 
Respirators use Ventilators, Mechanical  | 
Respirators, Air-Purifying use Respiratory Protective Devices  | 
Respirators, Industrial use Respiratory Protective Devices  | 
Respirators, Negative-Pressure use Ventilators, Negative-Pressure  | 
Respirators, Pulmonary, Negative-Pressure use Ventilators, Negative-Pressure  | 
Respiratory Acidosis use Acidosis, Respiratory  | 
Respiratory Airflow use Pulmonary Ventilation  | 
Respiratory Alkalosis use Alkalosis, Respiratory  | 
Respiratory Aspiration  | 
Respiratory Burst  | 
Respiratory Care Units  | 
Respiratory Center  | 
Respiratory Chain use Electron Transport  | 
Respiratory Chain Deficiencies, Mitochondrial use Mitochondrial Diseases  | 
Respiratory Circulation use Pulmonary Circulation  | 
Respiratory Dead Space  | 
Respiratory Depression use Respiratory Insufficiency  | 
Respiratory Distress Syndrome, Acute use Respiratory Distress Syndrome, Adult  | 
Respiratory Distress Syndrome, Adult  | 
Respiratory Distress Syndrome, Newborn  | 
Respiratory Drainage, Postural use Drainage, Postural  | 
Respiratory Drug Administration use Administration, Inhalation  | 
Respiratory Enteric Orphan Viruses use Reoviridae  | 
Respiratory Epithelium use Respiratory Mucosa  | 
Respiratory Failure use Respiratory Insufficiency  | 
Respiratory Function Tests  | 
Respiratory Hypersensitivity  | 
Respiratory Insufficiency  | 
Respiratory Mechanics  | 
Respiratory Mucosa  | 
Respiratory Muscle Training use Breathing Exercises  | 
Respiratory Muscles  | 
Respiratory Paralysis  | 
Respiratory Physiologic Phenomena  | 
Respiratory Physiologic Processes  | 
Respiratory Physiology  | 
Respiratory Protective Devices  | 
Respiratory Sounds  | 
Respiratory Stimulants use Respiratory System Agents  | 
Respiratory Syncytial Virus Infections  | 
Respiratory Syncytial Virus Vaccines  | 
Respiratory Syncytial Virus, Bovine  | 
Respiratory Syncytial Virus, Human  | 
Respiratory Syncytial Viruses  | 
Respiratory Syndrome, Severe Acute use Severe Acute Respiratory Syndrome  | 
Respiratory System  | 
Respiratory System Abnormalities  | 
Respiratory System Agents  | 
Respiratory Therapy  | 
Respiratory Therapy Department, Hospital  | 
Respiratory Tract Diseases  | 
Respiratory Tract Fistula  | 
Respiratory Tract Infections  | 
Respiratory Tract Neoplasms  | 
Respiratory Transport  | 
Respirovirus  | 
Respirovirus Infections  | 
Respite Care  | 
Response Element, Serum use Serum Response Element  | 
Response Element, Vitamin D use Vitamin D Response Element  | 
Response Elements  | 
Response Latency use Reaction Time  | 
Response Time use Reaction Time  | 
Response, Acute-Phase use Acute-Phase Reaction  | 
Responsibility, Social use Social Responsibility  | 
Responsible Sex use Safe Sex  | 
Rest  | 
Rest Vertical Dimension use Vertical Dimension  | 
Restaurants  | 
Resting Phase use G0 Phase  | 
Resting Potentials use Membrane Potentials  | 
Resting Tremor use Tremor  | 
Restless Legs Syndrome  | 
Restlessness use Psychomotor Agitation  | 
Reston Ebola virus use Ebolavirus  | 
Restraint, Physical  | 
Restriction Endonucleases use DNA Restriction Enzymes  | 
Restriction Endonucleases, Type I use Deoxyribonucleases, Type I Site-Specific  | 
Restriction Endonucleases, Type II use Deoxyribonucleases, Type II Site-Specific  | 
Restriction Endonucleases, Type III use Deoxyribonucleases, Type III Site-Specific  | 
Restriction Fragment Length Polymorphism use Polymorphism, Restriction Fragment Length  | 
Restriction Mapping  | 
Restriction-Modification Systems use DNA Restriction-Modification Enzymes  | 
Resume, Job use Job Application  | 
Resurrection Plant use Craterostigma  | 
Resuscitation  | 
Resuscitation Decisions use Resuscitation Orders  | 
Resuscitation Orders  | 
Retainers, Orthodontic use Orthodontic Retainers  | 
Retardation, Mental use Mental Retardation  | 
Rete Testis  | 
Retention (Psychology)  | 
Reticular Formation  | 
Reticulate Nuclei of Thalamus use Intralaminar Thalamic Nuclei  | 
Reticulin  | 
Reticulocyte Count  | 
Reticulocytes  | 
Reticulocytosis  | 
Reticuloendothelial System use Mononuclear Phagocyte System  | 
Reticuloendotheliosis  | 
Reticuloendotheliosis Viruses, Avian  | 
Reticuloendotheliosis virus  | 
Reticuloendotheliosis, Leukemic use Leukemia, Hairy Cell  | 
Reticulohistiocytoma use Histiocytosis, Non-Langerhans-Cell  | 
Reticulolymphosarcoma use Lymphoma  | 
Reticulopodia use Pseudopodia  | 
Reticulum  | 
Reticulum Cell-Like Sarcoma, Yoshida use Sarcoma, Yoshida  | 
Retina  | 
Retinal use Retinaldehyde  | 
Retinal Anlage Tumor use Neuroectodermal Tumor, Melanotic  | 
Retinal Artery  | 
Retinal Artery Occlusion  | 
Retinal Bipolar Cells  | 
Retinal Breaks use Retinal Perforations  | 
Retinal Degeneration  | 
Retinal Dehydrogenase  | 
Retinal Detachment  | 
Retinal Dialyses use Retinal Perforations  | 
Retinal Diseases  | 
Retinal Disparity use Vision Disparity  | 
Retinal Drusen  | 
Retinal Dysplasia  | 
Retinal Ganglion Cells  | 
Retinal Hemorrhage  | 
Retinal Holes use Retinal Perforations  | 
Retinal Horizontal Cells  | 
Retinal Necrosis Syndrome, Acute  | 
Retinal Neoplasms  | 
Retinal Neovascularization  | 
Retinal Perforations  | 
Retinal Pigment Epithelial Detachment use Retinal Detachment  | 
Retinal Pigment Epithelium use Pigment Epithelium of Eye  | 
Retinal Pigments  | 
Retinal S-Antigen use Arrestin  | 
Retinal Tears use Retinal Perforations  | 
Retinal Vasculitis  | 
Retinal Vein  | 
Retinal Vein Occlusion  | 
Retinal Vessels  | 
Retinal-Blood Barrier use Blood-Retinal Barrier  | 
Retinaldehyde  | 
Retinene use Retinaldehyde  | 
Retinitis  | 
Retinitis Pigmentosa  | 
Retinitis, Cytomegalovirus use Cytomegalovirus Retinitis  | 
Retinoblastoma  | 
Retinoblastoma Genes use Genes, Retinoblastoma  | 
Retinoblastoma Nuclear Phosphoprotein p105-Rb use Retinoblastoma Protein  | 
Retinoblastoma Protein  | 
Retinoblastoma-Like Protein 1 use Retinoblastoma-Like Protein p107  | 
Retinoblastoma-Like Protein 2 use Retinoblastoma-Like Protein p130  | 
Retinoblastoma-Like Protein p107  | 
Retinoblastoma-Like Protein p130  | 
Retinoic Acid use Tretinoin  | 
Retinoic Acid Receptors use Receptors, Retinoic Acid  | 
Retinoic Acid-Binding Proteins use Receptors, Retinoic Acid  | 
Retinoid X Receptor use Retinoid X Receptors  | 
Retinoid X Receptor alpha  | 
Retinoid X Receptor beta  | 
Retinoid X Receptor gamma  | 
Retinoid X Receptors  | 
Retinoids  | 
Retinol use Vitamin A  | 
Retinol O-Fatty-Acyltransferase  | 
Retinol-Binding Proteins  | 
Retinol-Binding Proteins, Cellular  | 
Retinol-Binding Proteins, Plasma  | 
Retinopathy of Prematurity  | 
Retinoschisis  | 
Retinoschisis, Degenerative use Retinoschisis  | 
Retinoschisis, Juvenile, X-Linked use Retinoschisis  | 
Retinoscopes  | 
Retinoscopy  | 
Retired use Retirement  | 
Retirement  | 
Retirement Benefits use Pensions  | 
Retracted Publication  | 
Retraction of Publication  | 
Retraction of Publication as Topic  | 
Retraining, Professional use Education, Professional, Retraining  | 
Retreatment  | 
Retrobulbar Hemorrhage  | 
Retrobulbar Neuritis use Optic Neuritis  | 
Retrocochlear Diseases  | 
Retrocochlear Hearing Loss use Retrocochlear Diseases  | 
Retroelements  | 
Retrofitting use Remodeling  | 
Retrognathism  | 
Retrograde Amnesia use Amnesia, Retrograde  | 
Retrograde Degeneration  | 
Retrograde Degeneration, Transneuronal use Retrograde Degeneration  | 
Retrograde Obturation  | 
Retrolental Fibroplasia use Retinopathy of Prematurity  | 
Retroperitoneal Fibrosis  | 
Retroperitoneal Neoplasms  | 
Retroperitoneal Space  | 
Retropharyngeal Abscess  | 
Retropneumoperitoneum  | 
Retroposons use Retroelements  | 
Retrospective Moral Judgment  | 
Retrospective Studies  | 
Retrotransposons use Retroelements  | 
Retroviridae  | 
Retroviridae Infections  | 
Retroviridae Proteins  | 
Retroviridae Proteins, Oncogenic  | 
Retrovirus Infections use Retroviridae Infections  | 
Retrovirus Proteins use Retroviridae Proteins  | 
Retrovirus-Like Elements use Retroelements  | 
Retroviruses use Retroviridae  | 
Retroviruses Type B, Mammalian use Betaretrovirus  | 
Retroviruses Type C, Avian use Alpharetrovirus  | 
Retroviruses Type C, Mammalian use Gammaretrovirus  | 
Retroviruses Type D use Betaretrovirus  | 
Retroviruses, Endogenous use Endogenous Retroviruses  | 
Retroviruses, Simian  | 
Rett Syndrome  | 
Return of Old Symptoms use Old Symptoms Return  | 
Returnee  | 
Returning State  | 
Reuniens Thalamic Nucleus use Midline Thalamic Nuclei  | 
Reunion  | 
Reuptake Inhibitors, Neurotransmitter use Neurotransmitter Uptake Inhibitors  | 
Reusable Solid Wastes use Solid Waste Use  | 
Reuse use Recycling (Environmental Health)  | 
Reused Water use Wastewater Use  | 
Revalidation of the Products Registration  | 
Reversal Learning  | 
Reverse Geologic Fault use Geologic Fault, Reverse  | 
Reverse Immunoblotting use Immunoblotting  | 
Reverse One-Hybrid System Techniques use Two-Hybrid System Techniques  | 
Reverse Osmosis  | 
Reverse T3 Thyroid hormone use Triiodothyronine, Reverse  | 
Reverse Transcriptase use RNA-Directed DNA Polymerase  | 
Reverse Transcriptase Inhibitors  | 
Reverse Transcriptase Polymerase Chain Reaction  | 
Reverse Transcription  | 
Reverse Triiodothyronine use Triiodothyronine, Reverse  | 
Reverse Two-Hybrid System Techniques use Two-Hybrid System Techniques  | 
Reversible Inhibitors of Monoamine Oxidase use Monoamine Oxidase Inhibitors  | 
Review  | 
Review Literature as Topic  | 
Revision, Joint use Reoperation  | 
Revision, Surgical use Reoperation  | 
Revolutionary War use American Revolution  | 
Reward  | 
Rewarming  | 
Reye Syndrome  | 
Reynolds Number  | 
Rh Factors use Rh-Hr Blood-Group System  | 
Rh Immune Globulin use Rho(D) Immune Globulin  | 
Rh Isoimmunization  | 
Rh-Hr Blood-Group System  | 
Rhabdiasoidea  | 
Rhabditida  | 
Rhabditida Infections  | 
Rhabditis use Rhabditoidea  | 
Rhabditoidea  | 
Rhabdoid Tumor  | 
Rhabdomyolysis  | 
Rhabdomyoma  | 
Rhabdomyosarcoma  | 
Rhabdomyosarcoma, Alveolar  | 
Rhabdomyosarcoma, Embryonal  | 
Rhabdoviridae  | 
Rhabdoviridae Infections  | 
Rhadinovirus  | 
Rhagoletis use Tephritidae  | 
Rhammus purshiana use Frangula  | 
Rhamnaceae  | 
Rhamnose  | 
Rhamnus  | 
Rhamnus californica  | 
Rhamnus cathartica  | 
Rhamnus frangula  | 
Rhamnus purshiana use Cascara sagrada  | 
Rhatany use Krameriaceae  | 
Rhazya use Apocynaceae  | 
Rheas use Rheiformes  | 
Rheedia use Clusiaceae  | 
Rheiformes  | 
Rhenium  | 
Rheography use Plethysmography, Impedance  | 
Rheology  | 
Rhesus Blood-Group System use Rh-Hr Blood-Group System  | 
Rhesus Monkey use Macaca mulatta  | 
Rhetinic Acid use Glycyrrhetinic Acid  | 
Rheum  | 
Rheum Emodin use Emodin  | 
Rheum palmatum  | 
Rheumatic Diseases  | 
Rheumatic Fever  | 
Rheumatic Heart Disease  | 
Rheumatic Nodule  | 
Rheumatism use Rheumatic Diseases  | 
Rheumatism, Articular, Acute use Rheumatic Fever  | 
Rheumatism, Muscular use Fibromyalgia  | 
Rheumatism, Peri-Extra-Articular use Polymyalgia Rheumatica  | 
Rheumatoid Arthritis use Arthritis, Rheumatoid  | 
Rheumatoid Factor  | 
Rheumatoid Nodule  | 
Rheumatoid Purpura use Purpura, Schoenlein-Henoch  | 
Rheumatoid Spondylitis use Spondylitis, Ankylosing  | 
Rheumatology  | 
Rhinencephalon use Olfactory Pathways  | 
Rhinitis  | 
Rhinitis, Allergic, Nonseasonal use Rhinitis, Allergic, Perennial  | 
Rhinitis, Allergic, Perennial  | 
Rhinitis, Allergic, Seasonal  | 
Rhinitis, Atrophic  | 
Rhinitis, Vasomotor  | 
Rhinolophus use Chiroptera  | 
Rhinomanometry  | 
Rhinometry, Acoustic  | 
Rhinopharynx use Nasopharynx  | 
Rhinophyma  | 
Rhinoplasty  | 
Rhinoscleroma  | 
Rhinosporidiosis  | 
Rhinosporidium  | 
Rhinotracheitis Virus, Turkey use Metapneumovirus  | 
Rhinovirus  | 
Rhipicephalus  | 
Rhipicephalus sanguineus  | 
Rhizobiaceae  | 
Rhizobium  | 
Rhizobium etli  | 
Rhizobium galegae use Rhizobium  | 
Rhizobium leguminosarum  | 
Rhizobium lupini use Rhizobium  | 
Rhizobium meliloti use Sinorhizobium meliloti  | 
Rhizobium phaseoli  | 
Rhizobium radiobacter  | 
Rhizobium tropici  | 
Rhizoctonia  | 
Rhizoma Pinelliae use Pinellia  | 
Rhizome  | 
Rhizomelic Chondrodysplasia Punctata use Chondrodysplasia Punctata, Rhizomelic  | 
Rhizomucor  | 
Rhizophora use Rhizophoraceae  | 
Rhizophora mangle use Rhizophoraceae  | 
Rhizophoraceae  | 
Rhizopus  | 
Rhizotomy  | 
Rho Factor  | 
Rho(D) Immune Globulin  | 
Rhodallinum use Thiosinaminum  | 
Rhodamine 123  | 
Rhodamines  | 
Rhodanates use Thiocyanates  | 
Rhodanese use Thiosulfate Sulfurtransferase  | 
Rhodanine  | 
Rhode Island  | 
Rhodesia, Northern use Zambia  | 
Rhodesia, Southern use Zimbabwe  | 
Rhodiola  | 
Rhodium  | 
Rhodium Metallicum  | 
Rhodium Oxydatum Nitricum  | 
Rhodnius  | 
Rhodobacter  | 
Rhodobacter capsulatus  | 
Rhodobacter sphaeroides  | 
Rhodobacteraceae  | 
Rhodococcus  | 
Rhodococcus equi  | 
Rhodocyclaceae  | 
Rhodocyclus use Rhodocyclaceae  | 
Rhododendron  | 
Rhododendron chrysanthum  | 
Rhodomicrobium  | 
Rhodomicrobium vannielii use Rhodomicrobium  | 
Rhodophyta use Algae, Red  | 
Rhodopseudomonas  | 
Rhodopseudomonas capsulatus use Rhodobacter capsulatus  | 
Rhodopseudomonas sphaeroides use Rhodobacter sphaeroides  | 
Rhodopsin  | 
Rhodopsin Kinase use G-Protein-Coupled Receptor Kinase 1  | 
Rhodopsins, Microbial  | 
Rhodospirillaceae  | 
Rhodospirillales  | 
Rhodospirillum  | 
Rhodospirillum centenum  | 
Rhodospirillum rubrum  | 
Rhodothermus  | 
Rhodotorula  | 
Rhodovulum  | 
Rhombencephalic Sleep use Sleep, REM  | 
Rhombencephalon  | 
Rhomboid Thalamic Nucleus use Midline Thalamic Nuclei  | 
Rhonchi use Respiratory Sounds  | 
Rhubarb use Rheum  | 
Rhus  | 
Rhus Dermatitis use Dermatitis, Toxicodendron  | 
Rhus aromatica  | 
Rhus cotinus  | 
Rhus diversiloba  | 
Rhus glabra  | 
Rhus laurina  | 
Rhus radicans  | 
Rhus toxicodendron  | 
Rhus venenata  | 
Rhus vernix  | 
Rhyncophthirina use Lice  | 
Rhythmicity use Periodicity  | 
Rhytidectomy use Rhytidoplasty  | 
Rhytidoplasty  | 
Rib Fractures  | 
Ribavirin  | 
Ribes  | 
Ribitol  | 
Riboflavin  | 
Riboflavin Deficiency  | 
Riboflavin Synthase  | 
Ribonuclease A use Ribonuclease, Pancreatic  | 
Ribonuclease H  | 
Ribonuclease H, Calf Thymus use Ribonuclease H  | 
Ribonuclease H, Human Immunodeficiency Virus  | 
Ribonuclease III  | 
Ribonuclease N1 use Ribonuclease T1  | 
Ribonuclease P  | 
Ribonuclease P, RNA Catalytic Subunit use Ribonuclease P  | 
Ribonuclease T1  | 
Ribonuclease, Pancreatic  | 
Ribonucleases  | 
Ribonucleic Acid use RNA  | 
Ribonucleic Acid Regulatory Sequences use Regulatory Sequences, Ribonucleic Acid  | 
Ribonucleoprotein Particles, Vault use Vault Ribonucleoprotein Particles  | 
Ribonucleoprotein, U1 Small Nuclear  | 
Ribonucleoprotein, U2 Small Nuclear  | 
Ribonucleoprotein, U4-U6 Small Nuclear  | 
Ribonucleoprotein, U5 Small Nuclear  | 
Ribonucleoprotein, U7 Small Nuclear  | 
Ribonucleoproteins  | 
Ribonucleoproteins, Small Cytoplasmic  | 
Ribonucleoproteins, Small Nuclear  | 
Ribonucleoproteins, Small Nucleolar  | 
Ribonucleoproteins, U4 Small Nuclear use Ribonucleoprotein, U4-U6 Small Nuclear  | 
Ribonucleoproteins, U6 Small Nuclear use Ribonucleoprotein, U4-U6 Small Nuclear  | 
Ribonucleoside Diphosphate Reductase  | 
Ribonucleoside Phosphates use Ribonucleotides  | 
Ribonucleosides  | 
Ribonucleotide Reductases  | 
Ribonucleotides  | 
Ribose  | 
Ribose-Phosphate Pyrophosphokinase  | 
Ribosemonophosphates  | 
Ribosomal DNA use DNA, Ribosomal  | 
Ribosomal Frameshifting use Frameshifting, Ribosomal  | 
Ribosomal Protein S6  | 
Ribosomal Protein S6 Kinases  | 
Ribosomal Protein S6 Kinases, 70-kDa  | 
Ribosomal Protein S6 Kinases, 90-kDa  | 
Ribosomal Proteins  | 
Ribosomal RNA use RNA, Ribosomal  | 
Ribosomal Spacer DNA use DNA, Ribosomal Spacer  | 
Ribosome Inactivating Proteins  | 
Ribosome Inactivating Proteins, Type 1  | 
Ribosome Inactivating Proteins, Type 2  | 
Ribosome Subunits  | 
Ribosome Subunits, Large  | 
Ribosome Subunits, Large, Archaeal  | 
Ribosome Subunits, Large, Bacterial  | 
Ribosome Subunits, Large, Eukaryotic  | 
Ribosome Subunits, Small  | 
Ribosome Subunits, Small, Archaeal  | 
Ribosome Subunits, Small, Bacterial  | 
Ribosome Subunits, Small, Eukaryotic  | 
Ribosomes  | 
Ribostamycin  | 
Ribosylhypoxanthine Monophosphate use Inosine Monophosphate  | 
Ribotyping  | 
Ribovirin use Ribavirin  | 
Ribozymes use RNA, Catalytic  | 
Ribs  | 
Ribulose Biphosphate Carboxylase-Oxygenase use Ribulose-Bisphosphate Carboxylase  | 
Ribulose Diphosphate Carboxylase use Ribulose-Bisphosphate Carboxylase  | 
Ribulose-Bisphosphate Carboxylase  | 
Ribulosebiphosphate Carboxylase use Ribulose-Bisphosphate Carboxylase  | 
Ribulosephosphates  | 
Rice use Oryza sativa  | 
Rice Tungro Bacilliform Virus use Tungrovirus  | 
Rice stripe virus use Tenuivirus  | 
Rice tungro spherical virus use Waikavirus  | 
Richter Scale  | 
Ricin  | 
Ricinoleic Acids  | 
Ricinus  | 
Ricinus communis  | 
Rickets  | 
Rickets, Hypophosphatemic use Hypophosphatemic Rickets, X-Linked Dominant  | 
Rickets, Renal use Renal Osteodystrophy  | 
Rickets, Vitamin D-Resistant use Hypophosphatemic Rickets, X-Linked Dominant  | 
Rickets, X-Linked Hypophosphatemic use Hypophosphatemic Rickets, X-Linked Dominant  | 
Rickettsia  | 
Rickettsia Infections  | 
Rickettsia akari  | 
Rickettsia conorii  | 
Rickettsia felis  | 
Rickettsia prowazekii  | 
Rickettsia quintana use Bartonella quintana  | 
Rickettsia rickettsii  | 
Rickettsia tsutsugamushi use Orientia tsutsugamushi  | 
Rickettsia typhi  | 
Rickettsiaceae  | 
Rickettsiaceae Infections  | 
Rickettsial Pneumonia use Pneumonia, Rickettsial  | 
Rickettsial Vaccines  | 
Rickettsialpox use Rickettsiaceae Infections  | 
Rickettsieae  | 
Rickettsiella use Coxiellaceae  | 
Rida use Scrapie  | 
Ridge use Oceanic Ridge  | 
Rietveld Refinement use Least-Squares Analysis  | 
Rifabutin  | 
Rifampicin use Rifampin  | 
Rifampin  | 
Rifamycins  | 
Rifles use Firearms  | 
Rifomycins use Rifamycins  | 
Rift Valley Fever  | 
Rift Valley fever virus  | 
Right Atrial Function use Atrial Function, Right  | 
Right Heart Bypass use Heart Bypass, Right  | 
Right Ventricular Dysfunction use Ventricular Dysfunction, Right  | 
Right Ventricular Dysplasia, Arrhythmogenic use Arrhythmogenic Right Ventricular Dysplasia  | 
Right Ventricular Function use Ventricular Function, Right  | 
Right Ventricular Hypertrophy use Hypertrophy, Right Ventricular  | 
Right Whale Dolphins use Dolphins  | 
Right Whale, Greenland use Bowhead Whale  | 
Right Whale, North Atlantic use Whales  | 
Right Whale, Southern use Whales  | 
Right to Die  | 
Right to Health  | 
Right to Treatment use Patient Rights  | 
Rights of the Handicapped use Handicapped Advocacy  | 
Rightsizing use Personnel Downsizing  | 
Rigidity, Decerebrate use Decerebrate State  | 
Rigidity, Decorticate use Decerebrate State  | 
Rigidity, Muscular use Muscle Rigidity  | 
Rigor Mortis  | 
Riley Virus use Lactate dehydrogenase-elevating virus  | 
Riley-Day Syndrome use Dysautonomia, Familial  | 
Riluzole  | 
Rimantadine  | 
Rinderpest  | 
Rinderpest virus  | 
Ring Chromosomes  | 
Ring Constrictions, Intrauterine use Amniotic Band Syndrome  | 
Ringelman Chart  | 
Ringelman Scale use Ringelman Chart  | 
Ringtails use Procyonidae  | 
Ringworm use Tinea  | 
Rio Muni use Equatorial Guinea  | 
Rioprostil  | 
Riot Control Agents, Chemical  | 
Riots  | 
Rising Tide  | 
Risk  | 
Risk Acceptance use Risk-Taking  | 
Risk Adjustment  | 
Risk Areas Delimitation  | 
Risk Assessment  | 
Risk Behavior use Risk-Taking  | 
Risk Exposure use Risk-Taking  | 
Risk Factors  | 
Risk Grade  | 
Risk Grade I  | 
Risk Grade II  | 
Risk Groups  | 
Risk Groups Nutrition  | 
Risk Index  | 
Risk Management  | 
Risk Map  | 
Risk Rate use Risk Index  | 
Risk Ratio use Odds Ratio  | 
Risk Reduction use Risk Reduction Behavior  | 
Risk Reduction Behavior  | 
Risk Sharing, Financial  | 
Risk Zone  | 
Risk of Biological Agents use Exposure to Biological Agents  | 
Risk-Benefit Assessment use Risk Assessment  | 
Risk-Taking  | 
Risperidone  | 
Risso's Dolphin use Dolphins  | 
Ristocetin  | 
Ritanserin  | 
Ritodrine  | 
Ritonavir  | 
Ritter Disease use Staphylococcal Scalded Skin Syndrome  | 
Rituals use Ceremonial Behavior  | 
Rivea use Convolvulaceae  | 
River Basins  | 
River Bed  | 
River Blindness use Onchocerciasis, Ocular  | 
River Forecast use Hydrological Forecast  | 
River Mouth use Delta  | 
River Otters use Otters  | 
River Pollution  | 
River Water Collection  | 
Rivers  | 
Roach (Fish) use Cyprinidae  | 
Roads  | 
Robenidine  | 
Robenzidene use Robenidine  | 
Robenzidine use Robenidine  | 
Robinia  | 
Robinia pseudacacia  | 
Robins use Songbirds  | 
Robotics  | 
Rochalimaea use Bartonella  | 
Rochalimaea Infections use Bartonella Infections  | 
Rochalimaea henselae use Bartonella henselae  | 
Rochalimaea quintana use Bartonella quintana  | 
Rock Decomposition  | 
Rock Shrimp use Decapoda (Crustacea)  | 
Rock Slide use Landslide  | 
Rocket, Yellow use Barbarea  | 
Rockfall  | 
Rockslide use Rockfall  | 
Rocky Mountain Bighorn Sheep use Sheep, Bighorn  | 
Rocky Mountain Spotted Fever  | 
Rod Outer Segments  | 
Rod Photoreceptors use Rods (Retina)  | 
Rod-Cone Dystrophy use Retinitis Pigmentosa  | 
Rod-Opsin use Opsin  | 
Rodent Control  | 
Rodent Diseases  | 
Rodent Ulcer use Carcinoma, Basal Cell  | 
Rodentia  | 
Rodenticides  | 
Rodents use Rodentia  | 
Rods (Retina)  | 
Rods and Cones use Photoreceptors, Vertebrate  | 
Roentgen Rays use X-Rays  | 
Roentgenkymography use Electrokymography  | 
Roentgenography use Radiography  | 
Roentgenotherapy use X-Ray Therapy  | 
Rogerian Therapy use Nondirective Therapy  | 
Rohypnol use Flunitrazepam  | 
Rolands Epilepsy use Epilepsy, Rolandic  | 
Role  | 
Role Concept use Role  | 
Role Playing  | 
Rolipram  | 
Rolitetracycline  | 
Roller  | 
Rollinia  | 
Romaleidae use Grasshoppers  | 
Roman Chamomile use Anthemis nobilis (Homeopathy)  | 
Roman Empire use Roman World  | 
Roman World  | 
Romania  | 
Romano-Ward Syndrome  | 
Romanomermis use Mermithoidea  | 
Romberg Disease use Facial Hemiatrophy  | 
Rome  | 
Ronidazole  | 
Roniviridae  | 
Rooibos use Aspalathus  | 
Rooming-in Care  | 
Rooms, Patient use Patients' Rooms  | 
Root Canal use Dental Pulp Cavity  | 
Root Canal Filling Materials  | 
Root Canal Irrigants  | 
Root Canal Medicaments use Root Canal Irrigants  | 
Root Canal Obturation  | 
Root Canal Preparation  | 
Root Canal Sealants use Root Canal Filling Materials  | 
Root Canal Therapy  | 
Root Caries  | 
Root Nodules, Plant  | 
Root Planing  | 
Root Resorption  | 
Root Scaling use Dental Scaling  | 
Root Tip use Meristem  | 
Rorippa  | 
Rorschach Test  | 
Rosa  | 
Rosa canina  | 
Rosa centifolia  | 
Rosa damascena  | 
Rosacea  | 
Rosaceae  | 
Rosai-Dorfman Disease use Histiocytosis, Sinus  | 
Rosales  | 
Rosaniline Dyes  | 
Rose use Rosa  | 
Rose Bengal  | 
Rosehips use Rosa  | 
Rosenthal Syndrome use Factor XI Deficiency  | 
Rosenzweig Picture-Frustration Study use Projective Techniques  | 
Roseobacter  | 
Roseola Infantum use Exanthema Subitum  | 
Roseolovirus  | 
Roseolovirus Infections  | 
Roseomonas use Methylobacteriaceae  | 
Roseroot use Rhodiola  | 
Rosette Formation  | 
Rosmarinus  | 
Rosmarinus officinalis  | 
Ross River virus  | 
Rostral Intralaminar Nuclei use Intralaminar Thalamic Nuclei  | 
Rotameters  | 
Rotarod Performance Test  | 
Rotary Disks  | 
Rotary Drilling  | 
Rotary Nystagmus use Nystagmus, Pathologic  | 
Rotary Pumps  | 
Rotation  | 
Rotational Atherectomy use Atherectomy, Coronary  | 
Rotator Cuff  | 
Rotavirus  | 
Rotavirus Infections  | 
Rotavirus Vaccines  | 
Rotaxanes  | 
Rotenone  | 
Rothmund-Thomson Syndrome  | 
Rotifera  | 
Rotifers use Rotifera  | 
Rotor Syndrome use Hyperbilirubinemia, Hereditary  | 
Rouges use Products for Facial Makeup  | 
Rouget Cells use Pericytes  | 
Rough-Toothed Dolphin use Dolphins  | 
Roughage use Dietary Fiber  | 
Round Ligament  | 
Round Window, Ear  | 
Rounded Crested Weirs  | 
Rourea use Connaraceae  | 
Rous Sarcoma use Sarcoma, Avian  | 
Rous sarcoma virus  | 
Rous-Associated Virus use Avian leukosis virus  | 
Rousettus use Chiroptera  | 
Roussy-Levy Syndrome use Charcot-Marie-Tooth Disease  | 
Routine Diagnostic Tests use Diagnostic Tests, Routine  | 
Routing use Flood Routing  | 
Roux-en-Y Anastomosis use Anastomosis, Roux-en-Y  | 
Roux-en-Y Diversion use Anastomosis, Roux-en-Y  | 
Roux-en-Y Loop use Anastomosis, Roux-en-Y  | 
Rowan use Sorbus  | 
Rowson-Parr Virus use Friend murine leukemia virus  | 
Roxarsone  | 
Roxithromycin  | 
Royer Syndrome use Prader-Willi Syndrome  | 
Ruanda use Rwanda  | 
Rubber  | 
Rubber Allergy use Latex Hypersensitivity  | 
Rubber Dams  | 
Rubber Industry  | 
Rubber Silicone use Silicone Elastomers  | 
Rubber Tires use Tires  | 
Rubber Tree use Hevea  | 
Rubberplant use Ficus  | 
Rubefacients use Irritants  | 
Rubella  | 
Rubella Syndrome, Congenital  | 
Rubella Vaccine  | 
Rubella virus  | 
Rubeola use Measles  | 
Rubia  | 
Rubia tinctorum  | 
Rubiaceae  | 
Rubidium  | 
Rubidium Radioisotopes  | 
Rubidomycin use Daunorubicin  | 
Rubinstein-Taybi Syndrome  | 
Rubisco use Ribulose-Bisphosphate Carboxylase  | 
Rubivirus  | 
Rubivirus Infections  | 
Rubomycin use Daunorubicin  | 
Rubredoxins  | 
Rubulavirus  | 
Rubulavirus Infections  | 
Rubus villosus  | 
Ruby Lasers use Lasers, Solid-State  | 
Rudbeckia  | 
Rudbeckia angustifolia use Echinacea angustifolia  | 
Rudbeckia hirta  | 
Rudbeckia purpurea use Echinacea  | 
Rudiviridae  | 
Rudivirus use Rudiviridae  | 
Rudolphi's Rorqual use Balaenoptera  | 
Rue use Ruta  | 
Rue, Goat's use Galega  | 
Rue, Meadow use Thalictrum  | 
Ruellia use Acanthaceae  | 
Ruffini's Corpuscles use Mechanoreceptors  | 
Rufocromomycin use Streptonigrin  | 
Rugby use Football  | 
Rumania use Romania  | 
Rumen  | 
Rumex  | 
Rumex acetosa  | 
Rumex crispus  | 
Rumex obtusifolius use Lapathum acutum  | 
Ruminantia use Ruminants  | 
Ruminants  | 
Rumination Disorders use Feeding and Eating Disorders of Childhood  | 
Ruminococcus  | 
Runaway Behavior  | 
Running  | 
Runoff  | 
Runoff Coefficient  | 
Runt Disease use Graft vs Host Disease  | 
Rupicapra  | 
Ruppia use Alismatidae  | 
Rupture  | 
Rupture, Spontaneous  | 
Rural Communities use Rural Settlements  | 
Rural Development  | 
Rural Economy  | 
Rural Health  | 
Rural Health Services  | 
Rural Hospitals use Hospitals, Rural  | 
Rural Planning  | 
Rural Population  | 
Rural Population Health use Rural Health  | 
Rural Sanitation  | 
Rural Settlements  | 
Rural Water Supply use Water Supply, Rural  | 
Rural Workers  | 
Rural Zones  | 
Rural-Rural Migration use Internal Migration  | 
Rural-Urban Migration  | 
Ruscus  | 
Russell's Viper  | 
Russell's Viper Venom Time use Prothrombin Time  | 
Russia  | 
Russia (Pre-1917)  | 
Russian Orthodoxy use Eastern Orthodoxy  | 
Russian S.F.S.R. use Russia  | 
Russian S.F.S.R., Asian use Siberia  | 
Russian-Japanese War  | 
Russula emetica use Agaricus emeticus  | 
Russula foetens  | 
Rut Behavior use Sexual Behavior, Animal  | 
Ruta  | 
Ruta graveolens  | 
Rutabaga use Brassica napus  | 
Rutaceae  | 
Rutamycin  | 
Ruthenium  | 
Ruthenium Compounds  | 
Ruthenium Radioisotopes  | 
Ruthenium Red  | 
Rutin  | 
Rwanda  | 
RyR1 use Ryanodine Receptor Calcium Release Channel  | 
Ryania  | 
Ryanodine  | 
Ryanodine Receptor Calcium Release Channel  | 
Ryanodine Receptors use Ryanodine Receptor Calcium Release Channel  | 
Rye use Secale cereale  | 
Ryegrass use Lolium  | 
Rymovirus use Potyviridae  | 
rRNA Genes use Genes, rRNA  | 
rRNA Operon  | 
rRNA Promoter use Promoter Regions (Genetics)  | 
rab G-Proteins use rab GTP-Binding Proteins  | 
rab GTP-Binding Proteins  | 
rab GTPases use rab GTP-Binding Proteins  | 
rab1 GTP-Binding Proteins  | 
rab1A GTP-Binding Protein use rab1 GTP-Binding Proteins  | 
rab2 GTP-Binding Protein  | 
rab3 GTP-Binding Proteins  | 
rab3A GTP-Binding Protein  | 
rab4 GTP-Binding Proteins  | 
rab4A GTP-Binding Protein use rab4 GTP-Binding Proteins  | 
rab5 GTP-Binding Proteins  | 
rab5A GTP-Binding Protein use rab5 GTP-Binding Proteins  | 
rac GTP-Binding Proteins  | 
rac Proteins use rac GTP-Binding Proteins  | 
rac1 GTP-Binding Protein  | 
raf Kinases  | 
raf MAP Kinase Kinase Kinases use raf Kinases  | 
ral A GTP-Binding Protein use ral GTP-Binding Proteins  | 
ral GDP Dissociation Stimulator use ral Guanine Nucleotide Exchange Factor  | 
ral GTP-Binding Proteins  | 
ral Guanine Nucleotide Exchange Factor  | 
ralGDS use ral Guanine Nucleotide Exchange Factor  | 
ran GTP-Binding Protein  | 
ran Protein use ran GTP-Binding Protein  | 
rap GTP-Binding Proteins  | 
rap1 GTP-Binding Proteins  | 
rap1A GTP-Binding Protein use rap1 GTP-Binding Proteins  | 
ras GTPase-Activating Proteins  | 
ras Genes use Genes, ras  | 
ras Guanine Nucleotide Exchange Factors  | 
ras Oncogene Protein p21 use Oncogene Protein p21(ras)  | 
ras Proteins  | 
ras Proto-Oncogene Protein p21 use Proto-Oncogene Proteins p21(ras)  | 
ras-GAPs use ras GTPase-Activating Proteins  | 
ras-GRF1  | 
ras-Related GTPases use Monomeric GTP-Binding Proteins  | 
ras-Related rap Proteins use rap GTP-Binding Proteins  | 
rasGEFs use ras Guanine Nucleotide Exchange Factors  | 
rel Genes use Genes, rel  | 
rel Oncogene Proteins use Oncogene Proteins v-rel  | 
rel Proto-Oncogene Proteins use Proto-Oncogene Proteins c-rel  | 
ret Proto-Oncogene Proteins use Proto-Oncogene Proteins c-ret  | 
rev Gene Products use Gene Products, rev  | 
rev Gene Products, Human Immunodeficiency Virus  | 
rev Genes use Genes, rev  | 
rev Protein use Gene Products, rev  | 
rev-Responsive Element use Genes, env  | 
rex Gene Products use Gene Products, rex  | 
rex Genes use Genes, pX  | 
rex Protein use Gene Products, rex  | 
rho G-Proteins use rho GTP-Binding Proteins  | 
rho GTP-Binding Proteins  | 
rho GTPases use rho GTP-Binding Proteins  | 
rho Small GTP-Binding Proteins use rho GTP-Binding Proteins  | 
rho-Associated Kinase use rho-Associated Kinases  | 
rho-Associated Kinases  | 
rho12 GTP-Binding Protein use rhoA GTP-Binding Protein  | 
rhoA GTP-Binding Protein  | 
rhoB GTP-Binding Protein  | 
rhoGAP2 Protein use Chimerin 1  |