Balboa O, Delgado F, Voelker R. Incompetence of Esophagie Inferior Sphincter. Their Relation with Intrathoracic and Intraabdominal Pressures. Cir. Urug. [Internet]. 1979 Mar. 18 [cited 2026 May 23];49(6):550-2. Available from: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3112