title: The relationship between age and-or negative experiences and success on a methadone maintenance program.
mesh_terms: D000328:Adult; D000367:Age Factors; D002140:California; D004522:Educational Status; D004651:Employment; D005260:Female; D006556:Heroin Dependence / Q000150:complications / Q000628:therapy*; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D008800:Mexico / Q000208:ethnology; D008875:Middle Aged; D008913:Minority Groups; D010352:Patient Dropouts; D011330:Prisons; D011678:Punishment; D012054:Reinforcement, Psychology; D012926:Social Control, Formal; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control
chemical_list: D008691:Methadone