Sidoruk, Serhii. “Blood Supply of the Anal Canal in Patients With Chronic Hemorrhoids”. Journal of Education, Health and Sport 11, no. 4 (April 30, 2021): 217–221. Accessed April 18, 2026. https://apcz.umk.pl/JEHS/article/view/JEHS.2021.11.04.022.