Bansod, A. N., A. Shingade, and S. Mishra. “A Study of Upper Gastrointestinal Endoscopy in Management of Acute Upper Gastrointestinal Bleed”. International Surgery Journal, vol. 8, no. 2, Jan. 2021, pp. 631-6, doi:10.18203/2349-2902.isj20210375.