Gül Bora, Bilgehan Çağdaş Sonbahar, and Nejdet Özalp. “A Rare Complication of Crohn Disease: Duodenocolic Fistula”. Turkish Journal of Gastroenterology 28, no. 6 (July 25, 2019): 498–501. Accessed July 9, 2025. https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/3457.