title: Biotransformation and excretion: quantitative studies.
mesh_terms: D000818:Animals; D001679:Biogenic Amines / Q000378:metabolism; D001711:Biotransformation; D001826:Body Fluids / Q000378:metabolism; D002849:Chromatography, Gas; D002927:Cimetidine / Q000378:metabolism; D006801:Humans; D007554:Isotopes; D004364:Pharmaceutical Preparations / Q000378:metabolism* / Q000652:urine; D013237:Stereoisomerism; D013806:Theophylline / Q000378:metabolism
chemical_list: D001679:Biogenic Amines; D007554:Isotopes; D004364:Pharmaceutical Preparations; D002927:Cimetidine; D013806:Theophylline