1. Department of Surgery, Division of Critical Care, Trauma, and Burn, The Ohio State University Medical Center, Columbus, OH, U.S.A.
2. OPUS 12 Foundation, Columbus, OH, U.S.A.
3. Department of Surgery & Regional Level I Trauma Center, St Luke's Hospital and Health Network, Bethlehem, PA, U.S.A.
4. Department of Surgery, Section of Trauma/Critical Care, Temple University School of Medicine, Philadelphia, PA, U.S.A.
5. Department of Radiology, University of Pennsylvania School of Medicine, Philadelphia, PA, U.S.A.
6. Department of Medicine, University of Arizona College of Medicine, Tucson, AZ, U.S.A.
7. Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, U.S.A.
8. Department of Surgery, Washington University in St Louis, St Louis, MO, U.S.A.