Silva Júnior, G. B., R. C. Lima Verde, M. A. C. C. Muniz, A. jorge M. Cavalcante, A. M. R. Lima, and A. Gomes Neto. “Oesophago-Pleural Fistula Associated With Pulmonary Tuberculosis”. Internal Medicine, vol. 15, no. 4, Dec. 2008, pp. 254-8, https://revista.spmi.pt/index.php/rpmi/article/view/1486.