title: A modified token economy with patients in a methadone maintenance treatment program.
mesh_terms: D000203:Activities of Daily Living; D000661:Amphetamine / Q000627:therapeutic use; D003153:Community Health Services; D006760:Hospitalization; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D008722:Methods; D012201:Reward; D019966:Substance-Related Disorders / Q000628:therapy*; D013548:Sweden
chemical_list: D000661:Amphetamine; D008691:Methadone