title: Quantitative analysis of phenylalanine metabolites in urine to detect heterozygotes of phenylketonuria.
mesh_terms: D002849:Chromatography, Gas; D006579:Heterozygote; D006801:Humans; D008333:Mandelic Acids / Q000652:urine*; D010648:Phenylacetates / Q000652:urine*; D010649:Phenylalanine / Q000097:blood / Q000378:metabolism*; D010661:Phenylketonurias / Q000175:diagnosis / Q000235:genetics*; D010667:Phenylpyruvic Acids / Q000652:urine*; D013997:Time Factors; D014443:Tyrosine / Q000097:blood
chemical_list: D008333:Mandelic Acids; D010648:Phenylacetates; D010667:Phenylpyruvic Acids; D014443:Tyrosine; D010649:Phenylalanine