A comparison of two laboratory techniques for early detection of phenylketonuria.
D001681:Biological Assay; D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias / Q000175:diagnosis*; D013053:Spectrophotometry
D010649:Phenylalanine