Praderi, Raul, Carlos Ormaechea, and Bolivar Delgado. 1971. “Cephalic Duodenopancreatectomy: Technical Considerations Regarding 18 Operated Cases”. Cirugía Del Uruguay 41 (3):298-309. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/2188.