title: First use of heroin: changes in route of administration over time.
authors.affiliation: Drug Transitions Study, Maudsley Hospital, London.
authors.forename: J
authors.initials: J
authors.lastname: Strang
authors.forename: P
authors.initials: P
authors.lastname: Griffiths
authors.forename: B
authors.initials: B
authors.lastname: Powis
authors.forename: M
authors.initials: M
authors.lastname: Gossop
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission; D000280:Administration, Inhalation; D000293:Adolescent; D000328:Adult; D005260:Female; D003932:Heroin / Q000008:administration & dosage*; D006556:Heroin Dependence / Q000523:psychology*; D006801:Humans; D007267:Injections; D008297:Male; D008875:Middle Aged
chemical_list: D003932:Heroin