Pressa, Carlos, Alvaro Porteiro, Judith Uturbey, Wilson Ramírez, and Ethel Arèvalo. “Expierimental Models of Portal hyperténsion”. Cirugía del Uruguay 49, no. 6 (March 18, 1979): 557–558. Accessed June 19, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3115.