Pravia, Juan C. “Mega Esophagus: Dilatation Treatment of the Heart (intragastric Route) by Hegar Spark Plugs”. Cirugía del Uruguay 14, no. 11-12 (January 22, 2020): 717–725. Accessed May 24, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/691.