Caranti, Alberto, Mauro Budini, Michele Mangano, Alessandra Cirstaudi, and Davide Demagistri. 2020. “Primary Signet Ring Cell Carcinoma of the Pancreas: A Case Report about an Extremely Rare Variant of Pancreatic Carcinoma”. Annali Italiani Di Chirurgia 9 (September):1-4. https://annaliitalianidichirurgia.it/index.php/aic/article/view/527.