Valls, Alberto. 1971. “Chronic Perineal Complications of Peritoneal Hydatidosis: Contribution of the Uruguayan Surgery in the Treatment of the Peritoneal Complications of Hydatidosis”. Cirugía Del Uruguay 41 (4):378-86. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/2243.