MCELHATTON, C. P.; CROSS, T. Delayed presentation with sigmoid perforation: a gut feeling that something is wrong. International Surgery Journal, [S. l.], v. 10, n. 4, p. 807–809, 2023. DOI: 10.18203/2349-2902.isj20230698. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/9569. Acesso em: 13 feb. 2025.