Iweha, U. U., and N. C. Nwankwo. “Choledochoduodenal Fistula (Cdf): A Complication Of Chronic Peptic Ulcer Disease. A Case Report And Review Of Literature”. West African Journal of Radiology 13, no. 1 (August 15, 2025): 22–25. Accessed March 28, 2026. https://www.wajr.org/index.php/home/article/view/162.