Larghero Ibarz, Pedro. “Vagotomy and Operation of Pena Billroth for Duodenal Ulcer”. Cirugía del Uruguay 22, no. 2 (February 7, 2020): 125–129. Accessed May 26, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/1073.