Aortoesophageal fistula caused by aneurysm of the thoracic aorta: successful surgical treatment, case report, and literature review - Silva, Erasmo Simão da; Tozzi, Fábio Lambertini; Otoch, José Pinhata; Tolosa, Erasmo Magalhães Castro de; Neves, Celso Ricardo Bregalda; Fortes, Felipe (Journal of Vascular Surgery, 1999)