KHAN, A. J.; GUPTA, S.; KOHLI, M.; BHARGAVA, G. S. The usage of prior upper gastrointestinal endoscopy among symptomatic patients undergoing cholecystectomy. International Surgery Journal, [S. l.], v. 7, n. 5, p. 1404–1411, 2020. DOI: 10.18203/2349-2902.isj20201536. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/5907. Acesso em: 10 nov. 2025.