title: Syringe-exchange schemes: part of the necessary package: a reply to Spencer Madden.
authors.forename: G V
authors.initials: GV
authors.lastname: Stimson
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D006556:Heroin Dependence / Q000534:rehabilitation*; D006801:Humans; D007275:Injections, Intravenous; D012309:Risk-Taking; D013594:Syringes; D006113:United Kingdom