title: Needle exchange programs and HIV prevention: the greater good or the promotion of evil?
authors.affiliation: Saint Joseph's University, Philadelphia, PA, USA.
authors.forename: P A
authors.initials: PA
authors.lastname: Clark
mesh_terms: D002410:Catholicism; D028661:Complicity; D034723:Double Effect Principle; D026689:Ethical Analysis; D005380:Financing, Government; D015658:HIV Infections / Q000517:prevention & control*; D006801:Humans; D018671:Needle-Exchange Programs / Q000191:economics* / Q000941:ethics* / Q000706:statistics & numerical data; D015819:Substance Abuse, Intravenous; D014481:United States