From the Center for Injury Sciences (J.T., R.G., L.R., G.M.), University of Alabama at Birmingham, Birmingham, AL; Department of Epidemiology (R.G., G.M.), University of Alabama at Birmingham, Birmingham, AL; Section of Trauma, Burns, and Surgical Critical Care (L.W.R., G.M.), Division of General Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL.
Submitted for publication September 19, 2008.
Accepted for publication March 3, 2009.
Address for reprints: Gerald McGwin, Jr., M.S., Ph.D., Center for Injury Sciences, University of Alabama at Birmingham, 120 Kracke Building, 1922 7th Avenue South, AL 35294; email: [email protected].