YAZICIOĞLU, Nafi, et al. “EVALUATION OF 308 PATIENTS WITH ULCERATIVE COLITIS CHARGED AT HOSPITALES IN IZMIR FOR 5 YEARS”. Turkish Journal of Gastroenterology, vol. 5, no. 3, Apr. 2020, pp. 457-60, https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/351.