title: Sources of error in testing for PKU.
mesh_terms: D002712:Chlorides; D007464:Clioquinol; D006801:Humans; D007223:Infant; D007501:Iron; D010661:Phenylketonurias / Q000175:diagnosis* / Q000652:urine
chemical_list: D002712:Chlorides; D007464:Clioquinol; D007501:Iron