Tsivenko, A., T. Skalozub, and L. Usenko. “ULTRASONIC MONITORING OF A CONDITION OF ANASTOMOSIS GASTROENTERAL PATH IN THE POSTOPERATIVE PERIOD”. The Journal of V. N. Karazin Kharkiv National University, Series "Medicine", no. 16, 1, pp. 91-95, https://periodicals.karazin.ua/medicine/article/view/6993.