ABA, M.; BOLAT, L. Is Preoperative Upper Gastrointestinal Endoscopy Necessary Before Cholecystectomy? Research Article. Acta Medica Ruha, [S. l.], v. 3, n. 3, p. 129–133, 2025. DOI: 10.5281/zenodo.17116046. Disponível em: https://actamedicaruha.com/index.php/pub/article/view/170. Acesso em: 7 oct. 2025.