1. Thoracic and Vascular Surgery Research Center Shiraz University of Medical Sciences Shiraz Iran
2. Department of Internal Medicine Namazi Hospital, Shiraz University of Medical Sciences Shiraz Iran
3. Anesthesiology and Critical Care Research Center Shiraz University of Medical Sciences Shiraz Iran
4. Department of Surgery Shiraz University of Medical Sciences Shiraz Iran
5. Student Research Committee Shiraz University of Medical Sciences Shiraz Iran