Staff and client attitudes toward methadone maintenance.
D000328:Adult; D001290:Attitude; D001291:Attitude of Health Personnel; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D010361:Patients; D011581:Psychological Tests; D019966:Substance-Related Disorders / Q000188:drug therapy
D008691:Methadone