Bustamante, Sergio, and Shravan Cheruku. “Intraoperative Transesophageal Echocardiography to Evaluate a Gerbode Defect”. Colombian Journal of Anesthesiology 45, no. 2 (April 1, 2017): 147–150. Accessed May 4, 2024. https://www.revcolanest.com.co/index.php/rca/article/view/286.