Discontinuing the PKU diet.
D002648:Child; D003071:Cognition; D006801:Humans; D007360:Intelligence; D010349:Patient Compliance; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000178:diet therapy*; D012189:Retrospective Studies; D013997:Time Factors
D010649:Phenylalanine