Division of General Surgery, Department of Surgery, University of Alberta, Edmonton Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, Medical School, University of Texas Health Science Center, Houston Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, Medical School, University of Texas Health Science Center, Houston Division of Trauma, Critical Care and Acute Care Surgery, School of Medicine, Oregon Health & Science University, Portland Division of Trauma and Critical Care, Department of Surgery, School of Medicine, University of Washington, Seattle Department of Surgery, University of Colorado, Denver, Colorado Center for Translational Injury Research, Division of Acute Care Surgery, Department of Surgery, Medical School, University of Texas Health Science Center, Houston. Division of Trauma and Surgical Critical Care, Department of Surgery, College of Medicine, University of Tennessee Health Science Center, Memphis Division of Trauma, Burns and Surgical Critical Care, Department of Surgery, School of Medicine, University of Alabama, Birmingham Division of Trauma, Critical Care and Emergency Surgery, Department of Surgery, University of Arizona, Tucson Trauma & Acute Care Service, St Michael's Hospital, Toronto R Adams Crowley Shock Trauma Center, University of Maryland, Baltimore Division of Trauma, Critical Care and Acute Care Surgery, Department of Surgery, Oregon Health and Science University, Portland Division of Trauma and Critical Care, University of Southern California, Los Angeles.