Gastrointestinal Hemorrhage and Effect of Packed Red Blood Cells Transfusion in Shock: A Nationwide Analysis: 967. (October 2016) - Javaid, Toseef; Siddiqui, Nauman; Hasan, Syed; Khan, Zarmina; Tabassum, Sadia; Saleh, Jamal; Khuder, Sadiq; Sodeman, Thomas; Nawras, Ali