title: Urinalysis of 39,350 samples for drugs subject to abuse in a methadone maintenance treatment programme.
mesh_terms: D001463:Barbiturates / Q000652:urine; D003061:Codeine / Q000652:urine; D006801:Humans; D008403:Mass Screening; D008691:Methadone / Q000627:therapeutic use*; D009020:Morphine / Q000652:urine; D010627:Phenethylamines / Q000652:urine; D011803:Quinine / Q000652:urine; D019966:Substance-Related Disorders / Q000188:drug therapy / Q000652:urine*; D014481:United States
chemical_list: D001463:Barbiturates; D010627:Phenethylamines; D009020:Morphine; D011803:Quinine; D008691:Methadone; D003061:Codeine