Long-term endoscopic follow-up after closure of a post-bariatric surgery fistula with a cardiac septal defect occluder - de Moura, Diogo Turiani Hourneaux; Boghossian, Mateus Bond; Hirsch, Bruno Salomão; McCarty, Thomas R.; Baptista, Alberto Jose; de Moura, Eduardo Guimarães Hourneaux (Endoscopy, 2021)