title: Methadone maintenance: a review and critique.
mesh_terms: D000328:Adult; D006556:Heroin Dependence / Q000534:rehabilitation*; D006801:Humans; D007880:Legislation, Drug; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D014481:United States
chemical_list: D008691:Methadone