title: Characteristics of clients "enrolled" in an unauthorized methadone treatment program.
mesh_terms: D000328:Adult; D003710:Demography; D004219:District of Columbia; D005260:Female; D006556:Heroin Dependence / Q000145:classification / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D011787:Quality of Health Care; D012926:Social Control, Formal
chemical_list: D008691:Methadone