title: Treatment for heroin and crack cocaine use in England falls, data indicate.
authors: Richard
authors: R
authors: Hurley
mesh_terms: D000293:Adolescent; D019970:Cocaine-Related Disorders / Q000453:epidemiology* / Q000628:therapy; D016578:Crack Cocaine; D004739:England / Q000453:epidemiology; D006556:Heroin Dependence / Q000453:epidemiology* / Q000628:therapy; D006801:Humans; D055815:Young Adult
chemical_list: D016578:Crack Cocaine