Balboa, Oscar, and Paz Santurtún. “The Manometric Profile of the Gastroesophageal area.: Value of Same in Respiratory Pathology by Reflux”. Cirugía Del Uruguay, vol. 55, no. 2-3, Apr. 1985, pp. 103-6, https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3658.