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| Rabbits (11) | rabies (1) | Rabies / *drug therapy (1) |
| Rabies / *transmission (1) | Rabies / *transmission / virology (1) | Rabies / cf [Cerebrospinal Fluid] (1) |
| Rabies / di [Diagnosis] (2) | Rabies / ep [Epidemiology] (1) | Rabies / immunology / prevention & control / *transmission (1) |
| Rabies / microbiology / *transmission (1) | Rabies / mortality / *transmission (1) | Rabies / pa [Pathology] (2) |
| Rabies / pathology / *transmission (1) | Rabies / pc [Prevention & Control] (1) | Rabies / pp [Physiopathology] (1) |
| Rabies / tm [Transmission] (5) | Rabies / transmission (3) | Rabies Vaccines / *administration & dosage / immunology (1) |
| Rabies Vaccines / tu [Therapeutic Use] (1) | Rabies Vaccines/ad [Administration & Dosage] (1) | Rabies virus / *isolation & purification (1) |
| Rabies virus / ge [Genetics] (1) | Rabies virus / immunology / *isolation & purification (1) | Rabies virus / ip [Isolation & Purification] (3) |
| Rabies virus / isolation & purification (1) | Rabies virus/im [Immunology] (1) | Rabies/dt [Drug Therapy] (1) |
| Raccoons / vi [Virology] (1) | Radiation Chimera (1) | Radiation Dosage (1) |
| Radiation Effects (1) | Radioallergosorbent Test (3) | Radiography, Thoracic (3) |
| Radioimmunoassay (1) | Radioimmunoprecipitation Assay (2) | Radioisotope Teletherapy (1) |
| Radiology, Interventional / *methods (1) | Radionuclide Imaging (4) | Radiopharmaceuticals / *diagnostic use (1) |
| Radiotherapy (1) | Radiotherapy / adverse effects (2) | Radius Fractures / complications (1) |
| Random Amplified Polymorphic DNA Technique (1) | Randomized Controlled Trials as Topic (1) | Range of Motion, Articular (2) |
| Rapid Alert system for human Tissues and Cells (RATC) (1) | Rapidly growing mycobacteria (1) | Rats (5) |
| Rats, Inbred Strains (1) | Reagent Kits, Diagnostic (1) | Real-Time Polymerase Chain Reaction (1) |
| Receptors, Antigen, T-Cell / *immunology (1) | Receptors, Antigen, T-Cell, gamma-delta / genetics (1) | Receptors, Cholinergic / immunology (1) |
| Receptors, CXCR4 / *antagonists & inhibitors (1) | Receptors, Granulocyte Colony-Stimulating Factor / genetics (1) | Receptors, Thyrotropin / immunology (1) |
| recipients (1) | Recombinant Proteins (3) | Recombinant Proteins / administration & dosage / therapeutic use (1) |
| Recombinant Proteins / adverse effects (1) | Recombinant Proteins / adverse effects / immunology (1) | Recombinant Proteins / adverse effects / pharmacology (2) |
| Recombinant Proteins / ae [Adverse Effects] (3) | Recombinant Proteins / genetics / metabolism (1) | Recombinant Proteins / pd [Pharmacology] (2) |
| Recombinant Proteins / pharmacology (2) | Recombinant Proteins / tu [Therapeutic Use] (1) | Recombinant Proteins/ad [Administration & Dosage] (1) |
| Recombinant Proteins/tu [Therapeutic Use] (1) | Recombination, Genetic (2) | Reconstructive Surgical Procedures (1) |
| Reconstructive Surgical Procedures / *instrumentation / *methods / trends (1) | Reconstructive Surgical Procedures / *standards (1) | Reconstructive Surgical Procedures / *trends (1) |
| Recovery of Function (2) | Recovery of Function / *physiology (1) | RecQ Helicases / ge [Genetics] (1) |
| Rectal Neoplasms/co [Complications] (1) | Rectal Neoplasms/di [Diagnosis] (1) | Recurrence (53) |
| Red Cross (2) | red-cell concentrates (1) | Red-Cell Aplasia, Pure / *drug therapy / etiology (1) |
| Red-Cell Aplasia, Pure / *etiology (3) | Red-Cell Aplasia, Pure / *immunology / *pathology (1) | Red-Cell Aplasia, Pure / virology (1) |
| Reference Standards (1) | Reference Values (6) | Referral and Consultation (1) |
| Refraction, Ocular (1) | Refractive Errors / *diagnosis (1) | Refractive Surgical Procedures (1) |
| Registries (36) | Registries / *statistics & numerical data (2) | Registries / sn [Statistics & Numerical Data] (1) |
| Registries / statistics & numerical data (4) | Registries/sn [Statistics & Numerical Data] (2) | Regression (Psychology) (1) |
| Regression Analysis (5) | rejection (1) | relative iron deficiency and iron restricted erythropoiesis (1) |
| Religion and Medicine (1) | Remission Induction (5) | Renal Agents / therapeutic use (1) |
| renal and pancreas transplantation (1) | Renal Artery / *abnormalities / *surgery (1) | Renal Artery / *microbiology / pathology (1) |
| Renal Artery / *surgery (1) | Renal Artery / abnormalities / surgery (1) | Renal Artery / microbiology / pathology / surgery (1) |
| Renal Artery / microbiology / surgery (1) | Renal Artery / radiography (1) | Renal Artery / radiography / surgery (1) |
| Renal Artery / surgery (1) | Renal Artery / surgery / *ultrasonography (1) | Renal Dialysis (5) |
| renal failure (2) | Renal Insufficiency (1) | Renal Insufficiency / surgery (1) |
| Renal Insufficiency, Chronic/mo [Mortality] (1) | Renal Insufficiency, Chronic/su [Surgery] (2) | Renal Insufficiency/bl [Blood] (1) |
| Renal Insufficiency/ci [Chemically Induced] (1) | Renal Insufficiency/di [Diagnosis] (1) | Renal Insufficiency/et [Etiology] (1) |
| Renal transplant (2) | renal transplantation (3) | Reoperation (47) |
| Reoperation / adverse effects (1) | Reoperation/sn [Statistics & Numerical Data] (1) | Repetitive Sequences, Nucleic Acid (1) |
| Reproducibility of Results (4) | Reproduction (1) | Reproductive Techniques (4) |
| Reproductive Techniques, Assisted (12) | Reproductive Techniques, Assisted / adverse effects / *statistics & numerical (1) | Research (2) |
| Research Design (2) | Research Support, N.I.H., Extramural (6) | Research Support, Non-U.S. Gov't (48) |
| Research Support, U.S. Gov't, Non-P.H.S. (57) | Research Support, U.S. Gov't, P.H.S. (44) | Residence Characteristics (1) |
| Respiration, Artificial (1) | Respiratory Distress Syndrome, Adult / *drug therapy (1) | Respiratory Distress Syndrome, Adult / complications (1) |
| Respiratory Insufficiency (1) | Respiratory Insufficiency / *chemically induced / physiopathology (1) | Respiratory Insufficiency / *etiology (1) |
| Respiratory Insufficiency / diagnosis (1) | Respiratory Syncytial Viruses (1) | Respiratory Tract Diseases / *epidemiology (1) |
| Respiratory Tract Infections / *etiology / microbiology / pathology (1) | Respiratory Tract Neoplasms / *immunology / therapy (1) | Respirovirus Infections (1) |
| Resuscitation (2) | Resuscitation / *methods (1) | Reticulocyte Count (1) |
| Retina / *metabolism / pathology (1) | Retinal Diseases / *diagnosis / virology (1) | Retinal Diseases / *metabolism (1) |
| Retinal Vasculitis / virology (1) | Retinitis / complications / *drug therapy (1) | Retroperitoneal Space / surgery (1) |
| Retrospective Studies (168) | Retroviridae (1) | Reunion / epidemiology (1) |
| Reverse Transcriptase Polymerase Chain Reaction (12) | Rh Isoimmunization / *etiology / therapy (1) | Rh-Hr Blood-Group System (1) |
| Rh-Hr Blood-Group System / *immunology (2) | Rh-Hr Blood-Group System / genetics / immunology (1) | Rh-Hr Blood-Group System / immunology (1) |
| Rh-Hr Blood-Group System/bl [Blood] (1) | Rh-Hr Blood-Group System/im [Immunology] (2) | Rheumatic Diseases / ci [Chemically Induced] (1) |
| Rheumatic Heart Disease/su [Surgery] (1) | Rhinitis, Allergic, Perennial/et [Etiology] (1) | Rhinitis/et [Etiology] (1) |
| rho-Associated Kinases / antagonists & inhibitors (1) | Rhodotorula / *isolation & purification (2) | ribavirin (1) |
| Ribavirin / administration & dosage (1) | Ribavirin/ad [Administration & Dosage] (1) | Ribavirin/tu [Therapeutic Use] (1) |
| Ribotyping (1) | Ribs / *surgery (1) | Ribs / pathology (1) |
| Rickettsia rickettsii/ip [Isolation & Purification] (1) | Rifampin / therapeutic use (2) | Rifampin / tu [Therapeutic Use] (1) |
| risk (31) | Risk Assessment (31) | Risk Assessment / *methods (1) |
| Risk Assessment/mt [Methods] (1) | Risk Factors (159) | Risk Management (3) |
| Risk Reduction Behavior (1) | Risk-Taking (1) | rituximab (2) |
| RNA / administration & dosage (1) | RNA, Bacterial / analysis (1) | RNA, Bacterial/ge [Genetics] (1) |
| RNA, Fungal / genetics (1) | RNA, Messenger / blood (1) | RNA, Protozoan/bl [Blood] (1) |
| RNA, Protozoan/ge [Genetics] (3) | RNA, Ribosomal / genetics (1) | RNA, Ribosomal, 16S / analysis (1) |
| RNA, Ribosomal, 16S/ge [Genetics] (1) | RNA, Ribosomal, 18S/ge [Genetics] (2) | RNA, Ribosomal, 23S / analysis (1) |
| RNA, Ribosomal, 5.8S / genetics (1) | RNA, Viral (11) | RNA, Viral / *analysis (2) |
| RNA, Viral / *blood (2) | RNA, Viral / *isolation & purification (1) | RNA, Viral / analysis (3) |
| RNA, Viral / analysis / blood (2) | RNA, Viral / blood (5) | RNA, Viral / blood / genetics (1) |
| RNA, Viral / me [Metabolism] (1) | RNA, Viral/an [Analysis] (1) | RNA, Viral/bl [Blood] (6) |
| RNA, Viral/ge [Genetics] (3) | RNA, Viral/ip [Isolation & Purification] (4) | ROC Curve (2) |
| Rocky Mountain Spotted Fever/tm [Transmission] (1) | Rodentia / parasitology (1) | Rosaniline Dyes (2) |
| Roseolovirus Infections/bl [Blood] (1) | Roseolovirus Infections/vi [Virology] (1) | RT-PCR (1) |
| Rupture (3) | Rupture / epidemiology (1) | Rupture, Spontaneous (3) |
