1. Department of Emergency Medicine University of Cincinnati Medical Center Cincinnati Ohio USA
2. Department of Emergency Medicine, Harvard Medical School Brigham and Women's Hospital Boston Massachusetts United States
3. Department of Emergency Medicine, Harvard Medical School Massachusetts General Hospital Boston Massachusetts USA
4. Department of Surgery, Division of Trauma, Burn, and Surgical Critical Care, Harvard Medical School Brigham and Women's Hospital Boston Massachusetts USA
5. Department of Radiology Massachusetts General Hospital Boston Massachusetts USA
6. Department of Radiology, Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA