Taylor, Roger, Nnennaya Opara, and Taylor Simmerman. “Gallstone Ileus With Cholecystogastric Fistula in an Older Female ”. European Journal of Case Reports in Internal Medicine 9, no. 4 (April 29, 2022). Accessed May 6, 2024. https://www.ejcrim.com/index.php/EJCRIM/article/view/3345.