Pantanali, Carlos A.R., Fernando A. M. Herbella, Maria A. C. A. Henry, Jose L. B. Aquino, Jose Francisco Mattos Farah, and Jose C. Del Grande. 2010. “ Nissen Fundoplication for the Treatment of Gastroesophageal Reflux Disease in Patients With Chagas Disease Without Achalasia ”. Revista Do Instituto De Medicina Tropical De São Paulo 52 (2): 113-14. https://revistas.usp.br/rimtsp/article/view/31313.