Mario Torre, et al. “Esophageal-Pleural Fistula After Intraoperative Transoesophageal Echocardiography in A Patient With Enlarged Left Atrium”. Global Journal of Medical Research, vol. 22, no. I3, Jan. 2023, pp. 1-4, https://medicalresearchjournal.org/index.php/GJMR/article/view/102252.