1 From the University of Washington, Seattle, Washington (E.M.B.); Uniformed Services University of Health Sciences, Bethesda, Maryland (T.E.R.); University of California-Davis, Sacramento, California (G.J.J.); University of Tennessee Health Sciences Center, Memphis, Tennessee (T.C.F.); Maryland Shock Trauma Institute, Baltimore, Maryland (R.A.K.); University of California-San Diego, San Diego, California (R.C., T.W.C.); Johns Hopkins University, Baltimore, Maryland (J.F.); University of Vermont, Burlington, Vermont (A.K.M.); National Trauma Institute, San Antonio, Texas (M.A.P., S.L.S.); Brown University, Providence, Rhode Island (W.G.C.); University of Texas Health Science Center, San Antonio, Texas (R.M.S.).