title: AIDS: a medical conundrum.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000209:etiology* / Q000235:genetics / Q000382:microbiology; D000328:Adult; D003587:Cytomegalovirus; D004854:Herpesvirus 4, Human; D006716:Homosexuality; D006801:Humans; D008297:Male; D012514:Sarcoma, Kaposi / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology