title: The nurse in the methadone maintenance program: expansions and transitions in role.
mesh_terms: D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D009723:Nurse-Patient Relations; D011568:Psychiatric Nursing; D012380:Role; D019966:Substance-Related Disorders / Q000188:drug therapy / Q000451:nursing*
chemical_list: D008691:Methadone