title: An enzymatic assay of plasma phenylalanine and tyrosine for the detection and management of phenylketonuria.
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008722:Methods; D010649:Phenylalanine / Q000097:blood*; D010650:Phenylalanine Ammonia-Lyase; D010661:Phenylketonurias / Q000097:blood / Q000175:diagnosis* / Q000188:drug therapy; D013050:Spectrometry, Fluorescence; D014443:Tyrosine / Q000097:blood*
chemical_list: D014443:Tyrosine; D010649:Phenylalanine; D010650:Phenylalanine Ammonia-Lyase