Guevara Valmaña, Osvaldo Ivan, Hugo Enrique Beyuma Mora, Chantal Gonzalez Chavez, Laura Maria Murguia Zamora, Elias Gil Loaeza, and Luis Fernando Palacio Pizano. “Gallstone Ileus, the Forgotten One: A Rare Cause of Intestinal Perforation and a Case Report”. International Journal of Research in Medical Sciences 8, no. 6 (May 26, 2020): 2313–2315. Accessed October 14, 2025. https://www.msjonline.org/index.php/ijrms/article/view/8292.