IBRAHIM, A. A. M. Comparative study between readjustable gastric balloon filled with air and others filled with saline inserted for obese patients and their effect on weight loss. International Surgery Journal, [S. l.], v. 4, n. 7, p. 2114–2117, 2017. DOI: 10.18203/2349-2902.isj20172759. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/1458. Acesso em: 10 nov. 2025.