Screening for PKU in sick or premature neonates.
D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000097:blood*; D007235:Infant, Premature, Diseases / Q000097:blood*; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000097:blood*
D010649:Phenylalanine