title: Anatomy of a trial.
mesh_terms: D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007361:Intelligence Tests; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000097:blood / Q000178:diet therapy*; D011247:Pregnancy; D013195:Stanford-Binet Test
chemical_list: D010649:Phenylalanine