3Burgard P,Rey F, Rupp A et al, Nearopsychologic function of early treat ed patt ents with phenylketonurid, on and off diet: results of cross-sectional study[J]. Pediatr Res, 1997,41(3):368-374.
4Lenke RR, Levy HL (1980) Maternal phenylketonuria and hyperphenylalaninemi a: an international survey of the outcome of untreated and treated pregnancies [J]. N Engl J Med 303:1202.
5Dumcan LL, Elder SB.Breastfeeding the infant with PKU.J Hum lact,1997:13 (3):231-235.
