Pasternak, Grzegorz, Dorota Bartusik-Aebisher, David Aebisher, and Rafał Filip. “Crohn’s Disease Complicated With a Bladder-Fistula – a Case Report”. European Journal of Clinical and Experimental Medicine 19, no. 1 (March 30, 2021): 76–80. Accessed January 18, 2026. https://journals.ur.edu.pl/ejcem/article/view/11877.