Khan, Ayesha Jule, Samridhi Gupta, Manu Kohli, and Gopal S. Bhargava. 2020. “The Usage of Prior Upper Gastrointestinal Endoscopy Among Symptomatic Patients Undergoing Cholecystectomy”. International Surgery Journal 7 (5):1404-11. https://doi.org/10.18203/2349-2902.isj20201536.