DR. DIVYANSHA MAHANT; DR. RANJEET KAMBLE; DR. PANKIL MOTA; DR. AKSHAY SALGAR; DR. VAISHNAVI MASKE. Observational Study of Role of Preoperative Oesophagogastroduodenoscopy in Patients Undergoing Elective Cholecystectomy for Usg Proven Cholelithiasis. International Journal of Pharmacy Research & Technology (IJPRT), [S. l.], v. 16, n. 1, p. 1715–1720, 2026. Disponível em: https://ijprt.org/index.php/pub/article/view/1764. Acesso em: 19 apr. 2026.