title: The role of epidemiology in needle exchange programs.
authors.affiliation: Center for Urban Epidemiologic Studies, New York Academy of Medicine, NY, USA. dvlahov@nyam.org
authors.forename: D
authors.initials: D
authors.lastname: Des Vlahov
mesh_terms: D001294:Attitude to Health; D015982:Bias; D002170:Canada / Q000453:epidemiology; D036262:Empirical Research; D015340:Epidemiologic Research Design; D004813:Epidemiology / Q000458:organization & administration*; D015658:HIV Infections / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control; D006291:Health Policy; D006801:Humans; D038622:Internationality; D018671:Needle-Exchange Programs / Q000458:organization & administration*; D015397:Program Evaluation; D015819:Substance Abuse, Intravenous / Q000150:complications; D014481:United States / Q000453:epidemiology