title: HIV, drugs, and ecology.
authors.forename: S
authors.initials: S
authors.lastname: Blower
authors.forename: D
authors.initials: D
authors.lastname: Hartel
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology; D004812:Epidemiologic Methods; D006801:Humans; D009519:New York City / Q000453:epidemiology; D015819:Substance Abuse, Intravenous / Q000453:epidemiology*