Guldberg P.,1998
Guldberg P., Rey F., Zschocke J., Romano V., Francois B., Michiels L., Ullrich K., Hoffmann G.F., Burgard P., Schmidt H., Meli C., Riva E., Dianzani I., Ponzone A., Rey J., Guttler F. A European multicenter study of phenylalanine hydroxylase defi- ciency, classification of 105 mutations and a general system for genotype-based prediction of metabolic phenotype. - Am.J.Hum. Genet., 1998, v. 63, p. 71-79.
