title: Gas chromatography-mass spectrometry for the identification of barbiturate metabolites.
mesh_terms: D001463:Barbiturates / Q000378:metabolism / Q000652:urine*; D002849:Chromatography, Gas; D003508:Cycloheptanes / Q000378:metabolism / Q000652:urine*; D006801:Humans; D013058:Mass Spectrometry
chemical_list: D001463:Barbiturates; D003508:Cycloheptanes