One million babies.
D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D008661:Metabolism, Inborn Errors / Q000517:prevention & control* / Q000652:urine; D010661:Phenylketonurias / Q000517:prevention & control / Q000652:urine; D014556:Urine / Q000032:analysis*