title: An improved method for measuring blood concentrations of phenylpyruvic acid.
mesh_terms: D000293:Adolescent; D000328:Adult; D000592:Amino Acid Metabolism, Inborn Errors / Q000097:blood / Q000175:diagnosis; D001881:Borates; D002712:Chlorides; D002940:Circadian Rhythm; D003937:Diagnosis, Differential; D006801:Humans; D007501:Iron; D008297:Male; D008722:Methods; D008875:Middle Aged; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000097:blood / Q000175:diagnosis / Q000378:metabolism; D010667:Phenylpyruvic Acids / Q000097:blood*; D013053:Spectrophotometry; D013997:Time Factors; D014466:Ultraviolet Rays
chemical_list: D001881:Borates; D002712:Chlorides; D010667:Phenylpyruvic Acids; D010649:Phenylalanine; D007501:Iron