Shilpakar, O., P. N. Prasad, and R. K. Maharjan. “Analysis of Clinical Rockall Score in Patients With Acute Upper Gastrointestinal Bleeding in the Emergency Services of a Tertiary Hospital”. Nepal Medical Journal, vol. 1, no. 01, Aug. 2018, pp. 31-36, https://nmj.com.np/nmj/index.php/nmj/article/view/114.