Kirkilevsky, S. I., P. S. Krahmalyov, R. I. Frydel, and O. Y. Dobrzhanskyi. “Methods of Stent Placement in Patients With Upper-Third and Middle-Third Esophageal Cancer”. Journal of Education, Health and Sport 9, no. 11 (November 6, 2019): 76–99. Accessed July 27, 2024. https://apcz.umk.pl/JEHS/article/view/JEHS.2019.09.11.006.