title: Detection of barbiturates, narcotics, and amphetamines in urine.
mesh_terms: D000661:Amphetamine / Q000652:urine*; D001463:Barbiturates / Q000652:urine*; D005069:Evaluation Studies as Topic; D006801:Humans; D008722:Methods; D009294:Narcotics / Q000652:urine*
chemical_list: D001463:Barbiturates; D009294:Narcotics; D000661:Amphetamine