1. Department of Surgery, Harbor-University of California, Los Angeles Medical Center, Torrance
2. Department of Surgery, University of California, Irvine Medical Center, Orange
3. Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California
4. Department of Surgery, University of Washington Medical Center, Seattle
5. Department of Emergency Medicine, Harbor-University of California, Los Angeles Medical Center, Torrance
6. The Lundquist Institute, Torrance, California
7. Department of Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
8. Department of Surgery, Cleveland Clinic Florida, Weston, Florida
9. Department of Surgery, Gunderson Medical Foundation, La Crosse, Wisconsin
10. Department of Surgery, University of Arkansas for Medical Sciences, Little Rock
11. Department of Surgery, University of California, Davis, School of Medicine, Sacramento
12. Department of Surgery, Brookwood Baptist Medical Center, Birmingham, Alabama
13. Department of Surgery, Southern Illinois School of Medicine, Springfield
14. Department of Surgery, University of Hawaii, Manoa
15. Department of Surgery, University of California, Los Angeles,
16. Department of Surgery, Loma Linda University, California