title: A controlled study of the clinical effectiveness of urine test results in a methadone maintenance program.
mesh_terms: D000328:Adult; D002140:California; D005260:Female; D006556:Heroin Dependence / Q000188:drug therapy / Q000652:urine*; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use / Q000652:urine*; D012041:Regional Medical Programs
chemical_list: D008691:Methadone