title: HIV seroconversion studies among intravenous drug users.
authors.forename: D
authors.initials: D
authors.lastname: Vlahov
mesh_terms: D003042:Cocaine; D015331:Cohort Studies; D015897:Comorbidity; D003430:Cross-Sectional Studies; D015658:HIV Infections / Q000635:transmission; D006679:HIV Seropositivity / Q000453:epidemiology*; D006801:Humans; D007275:Injections, Intravenous / Q000009:adverse effects; D011446:Prospective Studies; D012107:Research Design; D012307:Risk Factors; D012495:San Francisco / Q000453:epidemiology; D012747:Sexual Partners; D015819:Substance Abuse, Intravenous / Q000453:epidemiology*
chemical_list: D003042:Cocaine