G6PD and phenylketonuria: The initial intent was: (1) to establish the incidence of 6 congenital conditions, congenital hypothyroidism (CH), phenylketonuria (PKU), galactosemia (GAL), congenital adrenal hyperplasia (CAH), homocystinuria (HCY), and glucose-6-phosphate dehydrogenase (G6PD) deficiency; and (2) to make recommendations for the adoption of newborn screening nationwide.