Yaroshenko, R.A., S.I. Panasenko, I.O. Chorna, M.V. Khorosh, and O.V. Ligonenko. “Epidemiology of Gastrointestinal Bleedings Compared in Ukraine and in the Poltava Region”. Medicni perspektivi 28, no. 3 (September 29, 2023): 198–204. Accessed July 17, 2024. https://journals.uran.ua/index.php/2307-0404/article/view/289227.