Hamid Ullah, Abbas Masood, Mujahid Aslam, Shakeel Ahmad, Asfandyar Khan and Muhammad Naeem 2022. ACUTE UPPER GASTROINTESTINAL BLEED: ETIOLOGICAL SPECTRUM IN A TERTIARY CARE HOSPITAL OF NORTH WEST REGION OF PAKISTAN. Journal of Population Therapeutics and Clinical Pharmacology. 29, 02 (Apr. 2022), 393–396. DOI:https://doi.org/10.53555/jptcp.v29i02.4574.