1 From the Department of Surgery (R.C.), University of California San Diego, LA Jolla, California; Department of Surgery (R.A.K.), University of Maryland School of Medicine, College Park, Maryland; Department of Surgery (J.W.S.), University of Louisville, Louisville, KY; Department of Surgery (B.L.Z.), Indiana University-Purdue University Indianapolis, Indianapolis, Indiana; Stephen R. Weiner Department of Surgery (C.J.H.), Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Surgery (F.A.M.), University of Florida, Gainesville, Florida; Department of Surgery (J.A.B.), Uniformed Services University of the Health Sciences, Bethesda, Maryland; Department of Neurosurgery (A.V.), Virginia Commonwealth University, Richmond, Virginia; Department of Surgery (G.J.J.), University of California-Davis, Davis, California; Department of Surgery (D.H.J.), University of Texas Health Science Center at San Antonio, San Antonio, Texas; Department of Surgery (K.A.D.), Yale School of Medicine, New Haven, Connecticut; National Trauma Institute (M.A.P), San Antonio, Texas; and Department of Surgery (R.V.M.), University of Washington, Seattle, Washington.