title: Clinical implications of urine surveillance in a methadone maintenance program.
mesh_terms: D000293:Adolescent; D000328:Adult; D000661:Amphetamine / Q000652:urine; D001463:Barbiturates / Q000652:urine; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D009020:Morphine / Q000652:urine; D009294:Narcotics; D010044:Outpatient Clinics, Hospital; D011336:Probability; D012621:Seasons; D019966:Substance-Related Disorders / Q000188:drug therapy / Q000534:rehabilitation / Q000652:urine*
chemical_list: D001463:Barbiturates; D009294:Narcotics; D009020:Morphine; D000661:Amphetamine; D008691:Methadone