WAWRYNIUK, Agnieszka, RYBAK, Marzena, SZWAJKOSZ, Katarzyna, SAWICKA, Katarzyna, KRZYŻANOWSKA, Ewa, ŁUCZYK, Robert, SZYMCZUK, Ewa and TOMASZEWSKI, Andrzej. Crohn’s disease being caused by chronic inflammation of the digestive tract. Journal of Education, Health and Sport. Online. 15 August 2017. Vol. 7, no. 8, pp. 80-98. [Accessed 25 July 2026].