1 From the Division of Trauma, Burns, Surgical Critical Care, and Emergency General Surgery, Department of Surgery (G.A.V.), University of Arizona, Tucson, Arizona; Division of Trauma, Surgical Critical Care, and Emergency General Surgery, Department of Surgery (Z.M.B.), University of Nebraska, Omaha, Nebraska; University of Southern California (J.R.), Pasadena, CA; Grady Memorial Hospital (P.M.R.), Atlanta, Georgia; and Division of Trauma and Acute Care Surgery, Department of Surgery (E.E.M.), University of Colorado, Denver, Colorado.