Pérez Fontana, Víctor, and Abel Chifflet. “The Gastro-Duodenal Perforations in the Last Three Years at the Maciel Hospital”. Cirugía Del Uruguay, vol. 3, no. 2, Nov. 2019, pp. 18-25, https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/161.