Çağlar BAYSAL, Ülkü DAĞLI, Ahmet TEZEL, Azmi SERİN, and Aysel ÜLKER. “Interobserver Variation of Endoscopic Activity Index in Ulcerative Colitis”. Turkish Journal of Gastroenterology 8, no. 2 (July 25, 2019): 232–236. Accessed January 4, 2026. https://tjg.avesjournals.com/index.php/tjg/article/view/1519.