Groma, V., V. Boyko, S. Vyun, V. Makarov, and V. Tsodikov. “Endoscopic Evaluation of Healing of Epapad-Tonic Anastomosis”. Experimental and Clinical Medicine, Vol. 79, no. 2–3, July 2020, pp. 125-8, https://ecm.knmu.edu.ua/article/view/425.