1. Gorshkov VA, Kolesova EB, Nasonova NV. Diffuzionnyy sposob opredeleniya kislotnosti, sopryazhennyy s issledovaniem proteoliza v verkhnikh otdelakh pishchevaritel'nogo trakta. Laboratornoe delo. 1988;9:35-40.
2. Avdeeva MM, Nikitin NA, Prokop ׳ev YeS. Choice of operation method for acute complications of peptic ulcers of gastointestinal anastomosis. Medical newsletter of Vyatka. 2016;1(49):4-8.
3. Pozdniakov AV, Pozdniakova OF, Sotnikova EA. Clinical and radiological features of peptic anastomosis ulcers in zollinger-ellison syndrome. Visualization in medicine. 2022;4(2):19-26.
4. Gorpinich A.B. The experience of operated stomach surgial treatment. Scientific notes of Orel state university. 2015;4:308-310.
5. Chernookov A.I., Karapetyan M.M., Belyh E.N., Gorbunov V.N., Stolyarchuk E.V., Moiseev A.P., Karchevskii E.V. The experience of treatment in bleeding marginal and postvagotomic ulcers patients. Herald of surgical gastroenterology. 2015;1-2:21-29.