T. A. Filonova, V. M. Savvo, and Yu. V. Sorokolat. 2019. “MINOR CARDIAC ABNORMALITIES IN CHILDREN OF KHARKIV: PECULIARITIES OF .STRUCTURE AND DISTRIBUTION”. Eastern Ukrainian Medical Journal 7 (4), 365-71. https://eumj.med.sumdu.edu.ua/index.php/journal/article/view/58.