title: Take-home methadone: contingency effects on drug-seeking and productivity of narcotic addicts.
mesh_terms: D000328:Adult; D001519:Behavior; D004526:Efficiency; D005260:Female; D006801:Humans; D008297:Male; D008691:Methadone / Q000008:administration & dosage* / Q000627:therapeutic use; D008875:Middle Aged; D004364:Pharmaceutical Preparations / Q000652:urine; D012646:Self Administration; D019966:Substance-Related Disorders / Q000523:psychology / Q000534:rehabilitation*
chemical_list: D004364:Pharmaceutical Preparations; D008691:Methadone