T., K.; BAGUR, A. Presence of Helicobacter pylori infection in gastroduodenal perforations. International Surgery Journal, [S. l.], v. 7, n. 6, p. 1908–1912, 2020. DOI: 10.18203/2349-2902.isj20202405. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/5891. Acesso em: 8 nov. 2025.