title: Diagnosis of malignant hyperphenylalaninaemia.
mesh_terms: D001708:Biopterins / Q000031:analogs & derivatives; D001928:Brain Diseases, Metabolic / Q000097:blood / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias / Q000150:complications; D014976:Xanthopterin / Q000652:urine
chemical_list: D001708:Biopterins; D010649:Phenylalanine; D014976:Xanthopterin