title: Simultaneous labelling with stable and radioactive isotopes in drug metabolism studies.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002247:Carbon Isotopes; D002855:Chromatography, Thin Layer; D005243:Feces / Q000378:metabolism; D005260:Female; D007553:Isotope Labeling; D008660:Metabolism; D008722:Methods; D009025:Morpholines / Q000378:metabolism / Q000652:urine; D010879:Piperazines / Q000378:metabolism / Q000652:urine; D011743:Pyrimidines / Q000378:metabolism / Q000652:urine; D051381:Rats; D013997:Time Factors
chemical_list: D002247:Carbon Isotopes; D009025:Morpholines; D010879:Piperazines; D011743:Pyrimidines