title: The new heroin users: prevalence and characteristics in Wirral, Merseyside.
authors.forename: H
authors.initials: H
authors.lastname: Parker
authors.forename: R
authors.initials: R
authors.lastname: Newcombe
authors.forename: K
authors.initials: K
authors.lastname: Bakx
mesh_terms: D000293:Adolescent; D000328:Adult; D004739:England; D005260:Female; D006556:Heroin Dependence / Q000453:epidemiology*; D006801:Humans; D008297:Male; D012959:Socioeconomic Factors