| 1. | Acquired Immunodeficiency Syndrome (1603 studies) |
| 2. | Addison's Disease (1 study) |
| 3. | Agammaglobulinemia (3 studies) |
| 4. | AIDS Dementia Complex (12 studies) |
| 5. | AIDS-Associated Nephropathy (4 studies) |
| 6. | AIDS-Related Complex (276 studies) |
| 7. | AIDS-Related Opportunistic Infections (161 studies) |
| 8. | Anaphylaxis (1 study) |
| 9. | Anemia, Hemolytic, Autoimmune (3 studies) |
| 10. | Angioneurotic Edema (1 study) |
| 11. | Antiphospholipid Syndrome (2 studies) |
| 12. | Arthritis, Juvenile Rheumatoid (19 studies) |
| 13. | Arthritis, Rheumatoid (94 studies) |
| 14. | Asthma (117 studies) |
| 15. | Asthma, Exercise-Induced (3 studies) |
| 16. | Autoimmune Diseases (245 studies) |
| 17. | Autoimmune Diseases of the Nervous System (57 studies) |
| 18. | Autoimmune Lymphoproliferative Syndrome (4 studies) |
| 19. | Blood Group Incompatibility (1 study) |
| 20. | Burkitt Lymphoma (271 studies) |
| 21. | Chediak-Higashi Syndrome (5 studies) |
| 22. | Chronic Neutropenia (3 studies) |
| 23. | Common Variable Immunodeficiency (5 studies) |
| 24. | Cryoglobulinemia (1 study) |
| 25. | Deltaretrovirus Infections (21 studies) |
| 26. | Demyelinating Autoimmune Diseases, CNS (43 studies) |
| 27. | Dermatitis, Atopic (2 studies) |
| 28. | Diabetes Mellitus, Type I (35 studies) |
| 29. | Diffuse Cerebral Sclerosis of Schilder (1 study) |
| 30. | DiGeorge Syndrome (4 studies) |
| 31. | Dysgammaglobulinemia (1 study) |
| 32. | Encephalomyelitis, Acute Disseminated (1 study) |
| 33. | Erythroblastosis, Fetal (1 study) |
| 34. | Evan's Syndrome (1 study) |
| 35. | Felty's Syndrome (1 study) |
| 36. | Glomerulonephritis, IGA (3 studies) |
| 37. | Glomerulonephritis, Membranoproliferative (1 study) |
| 38. | Glomerulonephritis, Membranous (2 studies) |
| 39. | Graft vs Host Disease (91 studies) |
| 40. | Granulomatous Disease, Chronic (13 studies) |
| 41. | Graves' Disease (1 study) |
| 42. | Guillain-Barre Syndrome (2 studies) |
| 43. | Hay Fever (3 studies) |
| 44. | HIV Infections (1494 studies) |
| 45. | HIV Seropositivity (16 studies) |
| 46. | HIV Wasting Syndrome (13 studies) |
| 47. | HIV-Associated Candidiasis (1 study) |
| 48. | HIV-Associated Lipodystrophy Syndrome (1 study) |
| 49. | Hodgkin Disease (269 studies) |
| 50. | HTLV-I Infections (23 studies) |
| 51. | Hypersensitivity (137 studies) |
| 52. | Hypersensitivity, Delayed (15 studies) |
| 53. | Hypersensitivity, Immediate (130 studies) |
| 54. | IgA Deficiency (1 study) |
| 55. | Immune Complex Diseases (2 studies) |
| 56. | Immunoblastic Lymphadenopathy (92 studies) |
| 57. | Immunologic Deficiency Syndromes (1562 studies) |
| 58. | Immunologic Diseases (3027 studies) |
| 59. | Immunoproliferative Disorders (1076 studies) |
| 60. | Infectious Mononucleosis (1 study) |
| 61. | Job's Syndrome (7 studies) |
| 62. | Lambert-Eaton Myasthenic Syndrome (1 study) |
| 63. | Leukemia, Hairy Cell (78 studies) |
| 64. | Leukemia, Lymphocytic (441 studies) |
| 65. | Leukemia, Myelocytic, Acute (369 studies) |
| 66. | Leukemia, Myeloid (483 studies) |
| 67. | Leukemia, Nonlymphocytic, Acute (38 studies) |
| 68. | Leukemia-Lymphoma, T-Cell, Acute, HTLV-I-Associated (118 studies) |
| 69. | Leukocyte-Adhesion Deficiency Syndrome (7 studies) |
| 70. | Lupus Erythematosus, Systemic (46 studies) |
| 71. | Lupus Nephritis (8 studies) |
| 72. | Lymphangiomyoma (2 studies) |
| 73. | Lymphangiomyomatosis (4 studies) |
| 74. | Lymphoma (906 studies) |
| 75. | Lymphoma, AIDS-Related (64 studies) |
| 76. | Lymphoma, B-Cell (178 studies) |
| 77. | Lymphoma, Diffuse (124 studies) |
| 78. | Lymphoma, Follicular (216 studies) |
| 79. | Lymphoma, High-Grade (82 studies) |
| 80. | Lymphoma, Intermediate-Grade (90 studies) |
| 81. | Lymphoma, Large-Cell (411 studies) |
| 82. | Lymphoma, Large-Cell, Diffuse (348 studies) |
| 83. | Lymphoma, Large-Cell, Follicular (312 studies) |
| 84. | Lymphoma, Large-Cell, Immunoblastic (295 studies) |
| 85. | Lymphoma, Large-Cell, Ki-1 (117 studies) |
| 86. | Lymphoma, Low-Grade (60 studies) |
| 87. | Lymphoma, Lymphoblastic (284 studies) |
| 88. | Lymphoma, Mantle-Cell (292 studies) |
| 89. | Lymphoma, Mixed-Cell (325 studies) |
| 90. | Lymphoma, Mixed-Cell, Diffuse (293 studies) |
| 91. | Lymphoma, Mixed-Cell, Follicular (310 studies) |
| 92. | Lymphoma, Mucosa-Associated Lymphoid Tissue (98 studies) |
| 93. | Lymphoma, Non-Hodgkin (589 studies) |
| 94. | Lymphoma, Small Cleaved-Cell, Diffuse (286 studies) |
| 95. | Lymphoma, Small Cleaved-Cell, Follicular (310 studies) |
| 96. | Lymphoma, Small Lymphocytic (192 studies) |
| 97. | Lymphoma, Small Noncleaved-Cell (128 studies) |
| 98. | Lymphoma, Small-Cell (192 studies) |
| 99. | Lymphoma, T-Cell (261 studies) |
| 100. | Lymphoma, T-Cell, Cutaneous (179 studies) |
| 101. | Lymphoma, T-Cell, Peripheral (5 studies) |
| 102. | Lymphoma, Undifferentiated (93 studies) |
| 103. | Lymphopenia (4 studies) |
| 104. | Lymphoproliferative Disorders (1097 studies) |
| 105. | Marburg's Variant of Multiple Sclerosis (1 study) |
| 106. | Monoclonal Gammopathy of Undetermined Significance (38 studies) |
| 107. | Multiple Myeloma (310 studies) |
| 108. | Multiple Sclerosis (44 studies) |
| 109. | Multiple Sclerosis, Chronic Progressive (2 studies) |
| 110. | Multiple Sclerosis, Relapsing-Remitting (7 studies) |
| 111. | Myasthenia Gravis (2 studies) |
| 112. | Mycosis Fungoides (118 studies) |
| 113. | Myelitis, Transverse (1 study) |
| 114. | Neuromyelitis Optica (1 study) |
| 115. | Paraproteinemias (222 studies) |
| 116. | Pemphigus (3 studies) |
| 117. | Phagocyte Bactericidal Dysfunction (17 studies) |
| 118. | Plasmacytoma (300 studies) |
| 119. | Polyradiculoneuropathy (7 studies) |
| 120. | Polyradiculoneuropathy, Chronic Inflammatory Demyelinating (3 studies) |
| 121. | Purpura, Schoenlein-Henoch (1 study) |
| 122. | Purpura, Thrombocytopenic (11 studies) |
| 123. | Purpura, Thrombocytopenic, Idiopathic (3 studies) |
| 124. | Reiter Disease (1 study) |
| 125. | Respiratory Hypersensitivity (119 studies) |
| 126. | Reticuloendotheliosis (63 studies) |
| 127. | Rhinitis, Allergic, Perennial (3 studies) |
| 128. | Secondary Acute Myeloid Leukemia (139 studies) |
| 129. | Severe Combined Immunodeficiency (11 studies) |
| 130. | Sezary Syndrome (114 studies) |
| 131. | Sjogren's Syndrome (12 studies) |
| 132. | Spondylitis, Ankylosing (8 studies) |
| 133. | Stiff-Person Syndrome (3 studies) |
| 134. | Still's Disease, Adult-Onset (1 study) |
| 135. | T-Lymphocytopenia, Idiopathic CD4-Positive (1 study) |
| 136. | Temporal Arteritis (3 studies) |
| 137. | Urticaria (6 studies) |
| 138. | Vasculitis, Central Nervous System (3 studies) |
| 139. | Vasculitis, Hypersensitivity (2 studies) |
| 140. | Waldenstrom Macroglobulinemia (124 studies) |
| 141. | Wiskott-Aldrich Syndrome (5 studies) |
