MAEKAWA, Hiroshi; SAKURADA, Mutsumi; ORITA, Hajime; SATO, Koichi. Signet-Ring Cell Carcinoma Co-Existing with Adenocarcinoma of the Ampulla of Vater. A Case Report. JOP. Journal of the Pancreas, [S. l.], v. 12, n. 2, p. 162–166, 2011. DOI: 10.6092/1590-8577/3347. Disponível em: https://serena.atcult.it/index.php/jop/article/view/3347. Acesso em: 7 may. 2025.