title: The effect of a change in milieu on patient progress in methadone maintainance.
mesh_terms: D001007:Anxiety; D004777:Environment; D005639:Frustration; D006556:Heroin Dependence / Q000188:drug therapy* / Q000628:therapy; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D008884:Milieu Therapy; D009519:New York City; D010817:Physician-Patient Relations
chemical_list: D008691:Methadone