
Keywords: سازمان اروپایی کرون و کولیت; Inflammatory bowel disease; Colectomy; Immunosuppressive agents; nieswoiste zapalenie jelita; kolektomia; leki immunosupresyjne; ECCO; European Crohn's and Colitis Organisation; ESPGHAN; European Society for Peadiatric Gastroenterology, Hepatology and Nut