Epidemiologic studies--Kaposi's sarcoma vs. opportunistic infections among homosexual men with AIDS.
D000163:Acquired Immunodeficiency Syndrome / Q000150:complications* / Q000453:epidemiology; D004812:Epidemiologic Methods; D006716:Homosexuality; D006801:Humans; D008297:Male; D009573:Nitrites / Q000009:adverse effects; D009894:Opportunistic Infections / Q000453:epidemiology* / Q000209:etiology; D012514:Sarcoma, Kaposi / Q000453:epidemiology* / Q000209:etiology; D019966:Substance-Related Disorders / Q000453:epidemiology; D011795:Surveys and Questionnaires; D014481:United States
D009573:Nitrites