title: HIV risk behaviors of heterosexual male drug users.
authors: Division of Clinical Research, National Institute on Drug Abuse, Rockville, MD 20857, USA.
authors: R H
authors: RH
authors: Needle
mesh_terms: D015658:HIV Infections / Q000453:epidemiology / Q000523:psychology / Q000635:transmission*; D006801:Humans; D008297:Male; D012309:Risk-Taking; D012725:Sexual Behavior; D015819:Substance Abuse, Intravenous / Q000453:epidemiology* / Q000523:psychology; D014481:United States / Q000453:epidemiology