title: Laboratory detection of morphine.
mesh_terms: D000662:Amphetamines / Q000652:urine; D001463:Barbiturates / Q000652:urine; D006801:Humans; D007202:Indicators and Reagents; D008691:Methadone / Q000652:urine; D009020:Morphine / Q000652:urine*
chemical_list: D000662:Amphetamines; D001463:Barbiturates; D007202:Indicators and Reagents; D009020:Morphine; D008691:Methadone