NICOL, A. V.; NG, J. Y. S.; COLBRAN, R. Delayed presentation to regional hospital of gallstone ileus. International Surgery Journal, [S. l.], v. 9, n. 9, p. 1631–1634, 2022. DOI: 10.18203/2349-2902.isj20222242. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/8959. Acesso em: 20 feb. 2026.