-Rehman, Naseeb-ur, Salman khan, Muhammad Zubair, Moeen ul Haq, and Umar Badshah. 2024. “Causes, Morbidity, and Mortality of Upper Gastrointestinal Bleeding Among Hospitalized Patients”. BMC Journal of Medical Sciences 5 (1):55-58. https://doi.org/10.70905/bmcj.05.01.0269.