title: Identification of methaqualone metabolites from urine extract by gas chromatography-mass spectrometry.
mesh_terms: D002849:Chromatography, Gas; D004987:Ethers; D006801:Humans; D006900:Hydroxylation; D013058:Mass Spectrometry; D008702:Methaqualone / Q000097:blood / Q000652:urine*; D013053:Spectrophotometry
chemical_list: D004987:Ethers; D008702:Methaqualone