Prego, Alfredo. “Venous Thromboembolism in Surgery: Risk, Prevention and Treatment”. Cirugía del Uruguay 63, no. 1-2-3 (April 17, 1993): 9–14. Accessed March 28, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/4085.