|
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| Q | |
| 1. | Quadriplegia (1 study recruiting) |
| 2. | Quality of Life (57 studies recruiting) |
| R | |
| 1. | Radiation Injuries (9 studies recruiting) |
| 2. | Radiculopathy (2 studies recruiting) |
| 3. | Rectal Diseases (102 studies recruiting) |
| 4. | Rectal Neoplasms (88 studies recruiting) |
| 5. | Red-Cell Aplasia, Pure (6 studies recruiting) |
| 6. | Reflex Sympathetic Dystrophy (2 studies recruiting) |
| 7. | Refractive Errors (1 study recruiting) |
| 8. | Refractory Anemia (50 studies recruiting) |
| 9. | Refsum Disease (2 studies recruiting) |
| 10. | Renal Artery Obstruction (1 study recruiting) |
| 11. | Renal Osteodystrophy (1 study recruiting) |
| 12. | Reperfusion Injury (1 study recruiting) |
| 13. | Respiration Disorders (16 studies recruiting) |
| 14. | Respiratory Distress Syndrome (10 studies recruiting) |
| 15. | Respiratory Distress Syndrome, Adult (2 studies recruiting) |
| 16. | Respiratory Hypersensitivity (20 studies recruiting) |
| 17. | Respiratory Insufficiency (3 studies recruiting) |
| 18. | Respiratory Tract Diseases (248 studies recruiting) |
| 19. | Respiratory Tract Infections (13 studies recruiting) |
| 20. | Respiratory Tract Neoplasms (145 studies recruiting) |
| 21. | Retardation, Mental (6 studies recruiting) |
| 22. | Reticuloendotheliosis (28 studies recruiting) |
| 23. | Retinal Degeneration (9 studies recruiting) |
| 24. | Retinal Diseases (22 studies recruiting) |
| 25. | Retinitis (7 studies recruiting) |
| 26. | Retinitis Pigmentosa (4 studies recruiting) |
| 27. | Retinitis, Cytomegalovirus (2 studies recruiting) |
| 28. | Retinoblastoma (9 studies recruiting) |
| 29. | Retinopathy of Prematurity (1 study recruiting) |
| 30. | Retrocochlear Diseases (4 studies recruiting) |
| 31. | Retroviridae Infections (217 studies recruiting) |
| 32. | Rhabditida Infections (1 study recruiting) |
| 33. | Rhabdoid Tumor (3 studies recruiting) |
| 34. | Rhabdomyosarcoma (38 studies recruiting) |
| 35. | Rhabdomyosarcoma, Alveolar (4 studies recruiting) |
| 36. | Rhabdomyosarcoma, Embryonal (6 studies recruiting) |
| 37. | Rheumatic Diseases (33 studies recruiting) |
| 38. | Rheumatic Fever (2 studies recruiting) |
| 39. | Rheumatoid Arthritis (24 studies recruiting) |
| 40. | Rhinitis (1 study recruiting) |
| 41. | Rickets (2 studies recruiting) |
| 42. | Rieger Syndrome (1 study recruiting) |
| 43. | Right Ventricular Dysplasia, Arrhythmogenic (1 study recruiting) |
| 44. | RNA Virus Infections (233 studies recruiting) |
| 45. | Rupture (1 study recruiting) |
| S | |
| 1. | Salivary Gland Diseases (19 studies recruiting) |
| 2. | Salivary Gland Neoplasms (13 studies recruiting) |
| 3. | Sarcodina Infections (1 study recruiting) |
| 4. | Sarcoidosis (4 studies recruiting) |
| 5. | Sarcoidosis, Pulmonary (1 study recruiting) |
| 6. | Sarcoma (114 studies recruiting) |
| 7. | Sarcoma, Clear Cell (4 studies recruiting) |
| 8. | Sarcoma, Endometrial Stromal (3 studies recruiting) |
| 9. | Sarcoma, Ewing's (31 studies recruiting) |
| 10. | Sarcoma, Kaposi (18 studies recruiting) |
| 11. | Sarcoma, Synovial (9 studies recruiting) |
| 12. | Sarcomastigophora Infections (3 studies recruiting) |
| 13. | Schizophrenia (32 studies recruiting) |
| 14. | Schizophrenia and Disorders with Psychotic Features (30 studies recruiting) |
| 15. | Schoenlein-Henoch Purpura (1 study recruiting) |
| 16. | Sciatic Neuropathy (3 studies recruiting) |
| 17. | Sciatica (3 studies recruiting) |
| 18. | Scleroderma, Circumscribed (2 studies recruiting) |
| 19. | Scleroderma, Systemic (7 studies recruiting) |
| 20. | Sclerosis (28 studies recruiting) |
| 21. | Scoliosis (1 study recruiting) |
| 22. | Seasonal Affective Disorder (2 studies recruiting) |
| 23. | Sebaceous Gland Diseases (1 study recruiting) |
| 24. | Secernentea Infections (2 studies recruiting) |
| 25. | Secondary Acute Myeloid Leukemia (44 studies recruiting) |
| 26. | Seizures (14 studies recruiting) |
| 27. | Seminoma (14 studies recruiting) |
| 28. | Sensation Disorders (19 studies recruiting) |
| 29. | Sepsis (10 studies recruiting) |
| 30. | Sepsis Syndrome (1 study recruiting) |
| 31. | Septicemia (6 studies recruiting) |
| 32. | Serotonin Syndrome (3 studies recruiting) |
| 33. | Severe Combined Immunodeficiency (10 studies recruiting) |
| 34. | Sex Chromosome Abnormalities (7 studies recruiting) |
| 35. | Sex Differentiation Disorders (7 studies recruiting) |
| 36. | Sexually Transmitted Diseases (210 studies recruiting) |
| 37. | Sexually Transmitted Diseases, Bacterial (1 study recruiting) |
| 38. | Sexually Transmitted Diseases, Viral (210 studies recruiting) |
| 39. | Sezary Syndrome (48 studies recruiting) |
| 40. | Shock (9 studies recruiting) |
| 41. | Shock, Cardiogenic (5 studies recruiting) |
| 42. | Shock, Septic (2 studies recruiting) |
| 43. | Shprintzen Syndrome (2 studies recruiting) |
| 44. | Shwachman Syndrome (2 studies recruiting) |
| 45. | Shy-Drager Syndrome (1 study recruiting) |
| 46. | Sickle Cell Trait (1 study recruiting) |
| 47. | Signs and Symptoms (207 studies recruiting) |
| 48. | Signs and Symptoms, Digestive (4 studies recruiting) |
| 49. | Signs and Symptoms, Respiratory (5 studies recruiting) |
| 50. | Sitosterolemia (1 study recruiting) |
| 51. | Sjogren's Syndrome (5 studies recruiting) |
| 52. | Skin Abnormalities (3 studies recruiting) |
| 53. | Skin and Connective Tissue Diseases (129 studies recruiting) |
| 54. | Skin Appendage Diseases (4 studies recruiting) |
| 55. | Skin Diseases (87 studies recruiting) |
| 56. | Skin Diseases, Genetic (7 studies recruiting) |
| 57. | Skin Diseases, Infectious (7 studies recruiting) |
| 58. | Skin Diseases, Metabolic (18 studies recruiting) |
| 59. | Skin Diseases, Papulosquamous (6 studies recruiting) |
| 60. | Skin Diseases, Vascular (5 studies recruiting) |
| 61. | Skin Diseases, Vesiculobullous (2 studies recruiting) |
| 62. | Skin Diseases, Viral (6 studies recruiting) |
| 63. | Skin Neoplasms (150 studies recruiting) |
| 64. | Skin Ulcer (7 studies recruiting) |
| 65. | Skull Neoplasms (11 studies recruiting) |
| 66. | Sleep Apnea Syndromes (4 studies recruiting) |
| 67. | Sleep Disorders (6 studies recruiting) |
| 68. | Sleep Disorders, Intrinsic (6 studies recruiting) |
| 69. | Sleep Initiation and Maintenance Disorders (1 study recruiting) |
| 70. | Slow Virus Diseases (11 studies recruiting) |
| 71. | Smith-Lemli-Opitz Syndrome (4 studies recruiting) |
| 72. | Smith-Magenis Syndrome (2 studies recruiting) |
| 73. | Smoking (15 studies recruiting) |
| 74. | Soft Tissue Neoplasms (9 studies recruiting) |
| 75. | Somatoform Disorders (1 study recruiting) |
| 76. | Somatosensory Disorders (2 studies recruiting) |
| 77. | Somatostatinoma (4 studies recruiting) |
| 78. | Spasm (4 studies recruiting) |
| 79. | Spasmodic Dysphonia (5 studies recruiting) |
| 80. | Spastic Dysphonia (5 studies recruiting) |
| 81. | Spastic Paraparesis (5 studies recruiting) |
| 82. | Spastic Paraplegia, Hereditary (1 study recruiting) |
| 83. | Speech Disorders (6 studies recruiting) |
| 84. | Sphingolipidoses (16 studies recruiting) |
| 85. | Spinal Cord Diseases (25 studies recruiting) |
| 86. | Spinal Cord Injuries (9 studies recruiting) |
| 87. | Spinal Cord Neoplasms (1 study recruiting) |
| 88. | Spinal Diseases (7 studies recruiting) |
| 89. | Spinal Dysraphism (1 study recruiting) |
| 90. | Spinal Fractures (1 study recruiting) |
| 91. | Spinal Neoplasms (1 study recruiting) |
| 92. | Spinal Stenosis (4 studies recruiting) |
| 93. | Spinocerebellar Degenerations (4 studies recruiting) |
| 94. | Spirochaetales Infections (3 studies recruiting) |
| 95. | Spirurida Infections (1 study recruiting) |
| 96. | Splenic Diseases (5 studies recruiting) |
| 97. | Splenomegaly (2 studies recruiting) |
| 98. | Spondylitis (1 study recruiting) |
| 99. | Spondylitis, Ankylosing (1 study recruiting) |
| 100. | Spondylolisthesis (3 studies recruiting) |
| 101. | Sporozoea Infections (5 studies recruiting) |
| 102. | Sprains and Strains (1 study recruiting) |
| 103. | Stickler Syndrome (1 study recruiting) |
| 104. | Stomach Diseases (47 studies recruiting) |
| 105. | Stomach Neoplasms (46 studies recruiting) |
| 106. | Stomatitis (1 study recruiting) |
| 107. | Stomatitis, Aphthous (2 studies recruiting) |
| 108. | Stomatognathic Diseases (92 studies recruiting) |
| 109. | Stomatognathic System Abnormalities (2 studies recruiting) |
| 110. | Strabismus (3 studies recruiting) |
| 111. | Streptococcal Infections (4 studies recruiting) |
| 112. | Stress (18 studies recruiting) |
| 113. | Stress Disorders, Post-Traumatic (10 studies recruiting) |
| 114. | Strongyloidiasis (1 study recruiting) |
| 115. | Sturge-Weber Syndrome (8 studies recruiting) |
| 116. | Stuttering (7 studies recruiting) |
| 117. | Subarachnoid Hemorrhage (2 studies recruiting) |
| 118. | Subependymal Glioma (14 studies recruiting) |
| 119. | Substance Abuse, Intravenous (2 studies recruiting) |
| 120. | Substance Withdrawal Syndrome (2 studies recruiting) |
| 121. | Substance-Related Disorders (98 studies recruiting) |
| 122. | Supranuclear Palsy, Progressive (1 study recruiting) |
| 123. | Supratentorial Neoplasms (5 studies recruiting) |
| 124. | Sweat Gland Diseases (1 study recruiting) |
| 125. | Syncope (2 studies recruiting) |
| 126. | Syncope, Vasovagal (1 study recruiting) |
| 127. | Syndactyly (1 study recruiting) |
| 128. | Syndrome X (1 study recruiting) |
| 129. | Synostosis (1 study recruiting) |
| 130. | Synovial Cyst (35 studies recruiting) |
| 131. | Synovitis (2 studies recruiting) |
| 132. | Syphilis (1 study recruiting) |
| 133. | Syringomyelia (3 studies recruiting) |
| T | |
| 1. | T-Cell Leukemia (42 studies recruiting) |
| 2. | T-Cell Leukemia, Acute (3 studies recruiting) |
| 3. | T-Cell Leukemia, Chronic (2 studies recruiting) |
| 4. | T-Cell Lymphoma (97 studies recruiting) |
| 5. | T-Cell Lymphoma, Cutaneous (65 studies recruiting) |
| 6. | T-Cell Lymphoma, Peripheral (3 studies recruiting) |
| 7. | T-Lymphocytopenia, Idiopathic CD4-Positive (1 study recruiting) |
| 8. | Tachycardia (4 studies recruiting) |
| 9. | Tachycardia, Ventricular (2 studies recruiting) |
| 10. | Taeniasis (2 studies recruiting) |
| 11. | Takayasu's Arteritis (1 study recruiting) |
| 12. | Taste Disorders (1 study recruiting) |
| 13. | Tay-Sachs Disease (1 study recruiting) |
| 14. | Temporal Arteritis (1 study recruiting) |
| 15. | Temporomandibular Joint Disorders (5 studies recruiting) |
| 16. | Tension Headache (1 study recruiting) |
| 17. | Teratoma (19 studies recruiting) |
| 18. | Testicular Diseases (30 studies recruiting) |
| 19. | Testicular Neoplasms (29 studies recruiting) |
| 20. | Thalassemia (12 studies recruiting) |
| 21. | Thoracic Diseases (1 study recruiting) |
| 22. | Thoracic Neoplasms (122 studies recruiting) |
| 23. | Thrombocythemia, Hemorrhagic (18 studies recruiting) |
| 24. | Thrombocytopenia (16 studies recruiting) |
| 25. | Thrombocytosis (18 studies recruiting) |
| 26. | Thromboembolism (4 studies recruiting) |
| 27. | Thrombophilia (1 study recruiting) |
| 28. | Thrombophlebitis (1 study recruiting) |
| 29. | Thrombosis (7 studies recruiting) |
| 30. | Thrombosis, Venous (2 studies recruiting) |
| 31. | Thymoma (2 studies recruiting) |
| 32. | Thyroid Diseases (8 studies recruiting) |
| 33. | Thyroid Neoplasms (7 studies recruiting) |
| 34. | Thyroid Nodule (1 study recruiting) |
| 35. | Tic Disorders (10 studies recruiting) |
| 36. | Tick-Borne Diseases (2 studies recruiting) |
| 37. | Tics (10 studies recruiting) |
| 38. | Tinnitus (2 studies recruiting) |
| 39. | Tobacco Use Disorder (1 study recruiting) |
| 40. | Tooth Abnormalities (1 study recruiting) |
| 41. | Tooth Demineralization (3 studies recruiting) |
| 42. | Tooth Diseases (7 studies recruiting) |
| 43. | Tooth Loss (2 studies recruiting) |
| 44. | Tooth, Impacted (1 study recruiting) |
| 45. | Torticollis (2 studies recruiting) |
| 46. | Tourette Syndrome (14 studies recruiting) |
| 47. | Toxoplasmosis (1 study recruiting) |
| 48. | Transient Ischemic Attack (3 studies recruiting) |
| 49. | Transposition of Great Vessels (1 study recruiting) |
| 50. | Trauma Disorders, Cumulative (1 study recruiting) |
| 51. | Trauma, Nervous System (17 studies recruiting) |
| 52. | Tremor (5 studies recruiting) |
| 53. | Treponemal Infections (1 study recruiting) |
| 54. | Trichinosis (1 study recruiting) |
| 55. | Trichotillomania (2 studies recruiting) |
| 56. | Trigeminal Nerve Diseases (1 study recruiting) |
| 57. | Trigeminal Neuralgia (1 study recruiting) |
| 58. | Trophoblastic Neoplasms (11 studies recruiting) |
| 59. | Tropical Spastic Paraparesis (3 studies recruiting) |
| 60. | Trypanosomiasis (2 studies recruiting) |
| 61. | Tuberculosis (4 studies recruiting) |
| 62. | Tuberculosis, Pulmonary (1 study recruiting) |
| 63. | Tuberous Sclerosis (2 studies recruiting) |
| 64. | Tumor Virus Infections (6 studies recruiting) |
| 65. | Turner's Syndrome (7 studies recruiting) |
| 66. | Tyrosinemias (1 study recruiting) |