Accuracy of exposure assessment in prospective studies of risk factors for HIV infection among intravenous drug users.
Nicolosi
A
A
D015658:HIV Infections / Q000453:epidemiology* / Q000209:etiology; D006679:HIV Seropositivity / Q000453:epidemiology*; D006801:Humans; D011446:Prospective Studies; D015203:Reproducibility of Results; D012307:Risk Factors; D012309:Risk-Taking; D012495:San Francisco / Q000453:epidemiology; D012725:Sexual Behavior; D015819:Substance Abuse, Intravenous