1. College of Medicine, University of Arkansas for Medical Sciences , Little Rock, AR , USA
2. Department of Surgery , Division of Trauma and Acute Care Surgery, , Little Rock, AR , USA
3. University of Arkansas for Medical Sciences , Division of Trauma and Acute Care Surgery, , Little Rock, AR , USA
4. Department of Internal Medicine , Division of Gastroenterology, , Little Rock, AR , USA
5. University of Arkansas for Medical Sciences , Division of Gastroenterology, , Little Rock, AR , USA
6. Department of Radiology , Division of Vascular and Interventional Radiology, , Little Rock, AR , USA
7. University of Arkansas for Medical Sciences , Division of Vascular and Interventional Radiology, , Little Rock, AR , USA