Sojo, Enrique, Gonzalo Estapé, and Alexander Pike. “685 High Digestives Hemorrhages Studied by Fibroscopy”. Cirugía del Uruguay 47, no. 5 (March 6, 1977): 382–392. Accessed May 28, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/2935.