title: Needle exchange: friend or foe.
authors.forename: Bahman
authors.initials: B
authors.lastname: Nedjat-Shokouhi
mesh_terms: D003362:Cost-Benefit Analysis; D015658:HIV Infections / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D016485:Needle Sharing; D018671:Needle-Exchange Programs / Q000191:economics / Q000458:organization & administration; D015397:Program Evaluation; D015819:Substance Abuse, Intravenous / Q000523:psychology