Dilber, Mehwish, et al. “Frequency of In-Hospital Mortality in Patients With Upper Gastrointestinal Bleeding (UGIB) Due to Liver Cirrhosis”. Pakistan Journal of Medicine and Dentistry, vol. 14, no. 2, Apr. 2025, pp. 308-14, https://doi.org/10.36283/ziun-pjmd14-2/047.