title: Letter: Economics of methadone maintenance.
mesh_terms: D003365:Costs and Cost Analysis; D006556:Heroin Dependence / Q000188:drug therapy / Q000534:rehabilitation; D006760:Hospitalization; D006769:Hospitals, General; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D009519:New York City
chemical_list: D008691:Methadone