1. Division of Trauma, Burns, & Surgical Critical Care, University of California, Irvine
2. Trauma Department, Scripps Memorial Hospital La Jolla, La Jolla, California
3. Program in Trauma, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore
4. Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, University of California San Diego School of Medicine, San Diego
5. Los Angeles County + USC Medical Center, Division of Acute Care Surgery, University of Southern California, Los Angeles
6. Division of Trauma/Acute Care Surgery/Surgical Critical Care, Harbor-UCLA Medical Center, Torrance, California
7. Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California
8. Department of Surgery, Denver Health Medical Center, Denver, Colorado
9. Department of Surgery, The George Washington University School of Medicine & Health Sciences, Washington, DC
10. Center for Statistical Consulting, Department of Statistics, University of California, Irvine