Ferreira, Nelson, and Clivio Ferreira. “Strangulated Obturator Hernia: About Three Cases”. Cirugía del Uruguay 46, no. 2 (February 26, 1976): 109–114. Accessed May 23, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/2747.