title: The determination of phenylalanine in serum by mass fragmentography.
mesh_terms: D002849:Chromatography, Gas; D003201:Computers; D005069:Evaluation Studies as Topic; D006801:Humans; D013058:Mass Spectrometry; D008722:Methods; D008832:Microchemistry; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias / Q000097:blood*
chemical_list: D010649:Phenylalanine