Narayan, Harsha, Nagaraj Ravishankar, Shivakumar Shivabasappa, and Nalini Kotekar. 2019. “Gall Stones and Dyspepsia: Does Upper Gastrointestinal Endoscopy Have a Pivotal Role?”. International Surgery Journal 6 (6):1938-43. https://doi.org/10.18203/2349-2902.isj20192222.