1. Department of Surgery, Harbor–University of California at Los Angeles Medical Center, Torrance
2. Department of Emergency Medicine, Harbor–University of California at Los Angeles Medical Center, Torrance
3. Department of Surgery, University of California, San Diego
4. Department of Surgery, Iowa Methodist Medical Center, Des Moines
5. Department of Surgery, Loma Linda University, Loma Linda, California
6. Department of Surgery, Mount Carmel Health System, Columbus, Ohio
7. Department of Surgery, University of Southern California, Los Angeles
8. Department of Surgery, Gundersen Health System, La Crosse, Wisconsin
9. Department of Surgery, University of Nebraska Medical Center, Omaha
10. Department of Surgery, University of California–Davis, Sacramento
11. Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California
12. Department of Surgery, University of California Irvine Medical Center, Orange
13. Department of Surgery, Stanford University, Stanford, California
14. Department of Surgery, University of New Mexico Health Sciences Center, Albuquerque
15. Department of Surgery, University of California, Los Angeles
16. Department of Surgery, Columbia University College of Physicians and Surgeons, New York, New York