FELESHTYNSKYI, Y. P.; OPARIN, S. O.; SOROKIN, B. V.; BOIARSKA, M. G.; LUTSENKO, D. V. Endoscopic hemostasis in the ulcer gastro-duodenal hemorrhage, using high-frequency biological welding electro-ligature. Klinicheskaia khirurgiia, v. 87, n. 9-10, p. 14-17, 29 Oct. 2020.