Zhaksylyk, M.A., M.S. Kyrykbayeva, and A.M. Kalimagambetov. 2022. “Results of the Comprehensive Study in Newborn Babies With Congenital Phenylketonuria”. International Journal of Biology and Chemistry 15 (1):20-30. https://doi.org/10.26577/ijbch.2022.v15.i1.03.