title: Phenylketonuria due to dihydropteridine reductase deficiency: presentation of two cases.
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D009247:NADH, NADPH Oxidoreductases / Q000172:deficiency*; D010661:Phenylketonurias / Q000209:etiology*
chemical_list: D009247:NADH, NADPH Oxidoreductases