[Prolonged phenylalanine load].
D006801:Humans; D007231:Infant, Newborn; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias / Q000097:blood / Q000175:diagnosis*; D014443:Tyrosine / Q000097:blood
D014443:Tyrosine; D010649:Phenylalanine
Forlaengt fenylalaninbe lastning.