Torres, Miguel, Isabel Avondet, Javier Vázquez, and Alejandro Santini. “Cancer of the Anal Canal: A Radiochemo Curable Neoplasm”. Cirugía del Uruguay 67, no. 3 (April 20, 1997): 140–149. Accessed May 27, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/4443.