Natural history of HIV infection in gay men and intravenous drug users.
Friedland
G
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Albert Einstein College of Medicine, Bronx, New York.
D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D006716:Homosexuality; D006801:Humans; D008297:Male; D015819:Substance Abuse, Intravenous / Q000150:complications*; D014481:United States