CENDÁN ALFONZO, Juan E. Conduct in the treatment of gastroduodenal perforated ulcers: based on the analysis of 197 cases. Cirugía del Uruguay, [S. l.], v. 26, n. 3, p. 315–357, 2020. Disponível em: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/1299. Acesso em: 29 mar. 2026.