title: Letter: Naloxone for diagnosis in methadone programs.
mesh_terms: D002986:Clinical Trials as Topic; D006556:Heroin Dependence / Q000175:diagnosis* / Q000188:drug therapy; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D009270:Naloxone; D010555:Personality Inventory; D013375:Substance Withdrawal Syndrome
chemical_list: D009270:Naloxone; D008691:Methadone