title: A follow-up investigation of methadone patients: a preliminary report.
mesh_terms: D005500:Follow-Up Studies; D005845:Georgia; D006556:Heroin Dependence / Q000188:drug therapy*; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D010865:Pilot Projects; D011795:Surveys and Questionnaires
chemical_list: D008691:Methadone