Židanavičiūtė, Jurgita, Marijus Radavičius, Jurgis Sušinskas, and Algirdas Utkus. “A Comparative Analysis of Information Sources about the Prevalence of Congenital Anomalies of Lithuanian Children”. Lietuvos matematikos rinkinys 43, no. spec. (December 22, 2003): 565–570. Accessed May 21, 2024. https://www.journals.vu.lt/LMR/article/view/32530.