SZAWICA, Dominik, KUŹNIAR, Aleksandra, FULARSKA, Kamila, OLESZKO, Michał, WĄSIEWICZ, Edward, BERNACKI, Radosław, BERNACKI, Piotr, DUTKA, Martyna and ZARDZEWIAŁY, Witold. Treatment of perianal fistulas in Crohn’s disease - review of literature and current recommendations. Quality in Sport. Online. 30 April 2023. Vol. 12, pp. 27-34. [Accessed 7 July 2024]. DOI 10.12775/QS.2023.12.01.003.