Saenz, Luis, Morelos Adolfo García Sánchez, Alfredo Barrera Zavala, Carolina León Mancilla, Mireya De La Fuente González, Eduardo Hermes Cisneros Nava, Alan Karecci Ocampo Vargas, et al. “Gallstone Illeus, a Difficult Diagnosis: Case Report”. British Journal of Healthcare and Medical Research 7, no. 6 (December 31, 2020): 01–05. Accessed May 12, 2026. https://journals.scholarpublishing.org/index.php/BJHR/article/view/9341.