title: Prospective study of early neonatal screening for phenylketonuria.
mesh_terms: D000367:Age Factors; D006801:Humans; D007231:Infant, Newborn; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000097:blood / Q000175:diagnosis*; D011446:Prospective Studies
chemical_list: D010649:Phenylalanine