title: Changes in HIV risk-taking behaviour in intravenous drug users: a second follow-up.
authors.forename: C A
authors.initials: CA
authors.lastname: Skidmore
authors.forename: J R
authors.initials: JR
authors.lastname: Robertson
authors.forename: J J
authors.initials: JJ
authors.lastname: Roberts
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control / Q000635:transmission*; D005500:Follow-Up Studies; D015438:Health Behavior; D006801:Humans; D007275:Injections, Intravenous / Q000523:psychology*; D012309:Risk-Taking; D012606:Scotland; D019966:Substance-Related Disorders / Q000523:psychology*