From the R Adams Cowley Shock Trauma Center (T.M.S.), University of Maryland Medical System, Baltimore, Maryland; Scripps Mercy (S.S.), San Diego, California; and Department of Surgery (C.W.S.), Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.

Address for correspondence: Thomas M. Scalea, MD, R Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S Greene St, Baltimore, MD 21201; email: [email protected].