Sohail Bhutta , Muzamil Jamil , Kamran Aziz ,Wasim uddin. An Etiological Study of Upper Gastrointestinal Bleeding. JRMC [Internet]. 2012 Jun. 30 [cited 2026 Jan. 19];16(1). Available from: https://journalrmc.com/index.php/JRMC/article/view/616