ŞAHİN, Tülin, et al. “Cholelithiasis Fistua: A Cause of Chronic Diarrhea”. Turkish Journal of Gastroenterology, vol. 9, no. 3, July 2019, pp. 299-02, https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/779.