title: A schema for evaluating methadone maintenance programs.
authors.affiliation: Addiction Research Center, NIDA, Baltimore, Maryland 21224.
authors.forename: J C
authors.initials: JC
authors.lastname: Ball
mesh_terms: D003131:Combined Modality Therapy; D005500:Follow-Up Studies; D006556:Heroin Dependence / Q000534:rehabilitation*; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D012931:Social Environment
chemical_list: D008691:Methadone