title: [Needle exchange as bribery].
authors.affiliation: sven.britton@ki.se
authors.forename: Sven
authors.initials: S
authors.lastname: Britton
mesh_terms: D015658:HIV Infections / Q000175:diagnosis / Q000517:prevention & control; D006801:Humans; D018671:Needle-Exchange Programs; D015819:Substance Abuse, Intravenous