1. Department of Surgery, the University of Cincinnati College of Medicine, Cincinnati, Ohio
2. Department of Surgery, Washington University School of Medicine, Saint Louis, Missouri
3. Department of Pediatric Infectious Diseases, San Diego
4. Department of Pharmacy Practice, Chicago
5. Department of Medicine, University of Illinois at Chicago, Chicago
6. R. M. Alden Research Laboratory, David Geffen School of Medicine at UCLA, Los Angeles
7. Department of Pathology, Stanford University School of Medicine, Palo Alto, California
8. Department of Surgery, The Trauma Center at Maricopa Medical Center, Phoenix, Arizona
9. Department of Medicine, University of British Columbia, Vancouver, British Columbia
10. Department of Surgery, University of Washington, Seattle
11. Department of Surgery, Cornell Medical Center, New York, New York
12. Department of Medicine, Tufts University School of Medicine, Boston, Massachusetts
13. Department of Surgery, Rady Children's Hospital of San Diego, San Diego
14. Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
15. St Michael's Hospital, Toronto, Ontario, Canada
16. Department of Surgery, University of Virginia, Charlottesville
17. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland