Double-balloon enteroscopy in the diagnosis of an adenocarcinoma of the fourth portion of the duodenum: report of a case . Clinics, [S. l.], v. 62, n. 3, p. 353–356, 2007. DOI: 10.1590/S1807-59322007000300022. Disponível em: https://revistas.usp.br/clinics/article/view/17696.. Acesso em: 18 may. 2024.