HIV-1 symptoms similar in i.v. drug users, gays/bisexuals.
D000163:Acquired Immunodeficiency Syndrome / Q000503:physiopathology*; D001727:Bisexuality; D005260:Female; D015497:HIV-1; D006716:Homosexuality; D006801:Humans; D008297:Male; D015819:Substance Abuse, Intravenous