title: Quantitative analysis of 5-fluorouracil in human serum by selected ion monitoring gas chromatography--mass spectrometry.
mesh_terms: D002849:Chromatography, Gas; D003110:Colonic Neoplasms / Q000097:blood / Q000188:drug therapy; D005472:Fluorouracil / Q000008:administration & dosage / Q000097:blood*; D013058:Mass Spectrometry
chemical_list: D005472:Fluorouracil