1. Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
2. Department of Surgery, The Ohio State University, Columbus, Ohio
3. Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City
4. Department of Surgery, Massachusetts General Hospital, Harvard Medical School Shriners Hospitals for Children-Boston
5. Department of Surgery, Hennepin County Medical Center, Minneapolis Minnesota
6. Department of Surgery, University of Missouri School of Medicine, Columbia, Missouri
7. Department of Pediatric Surgery, Nationwide Childrens Hospital, Columbus, Ohio
8. United States Army Institute of Surgical Research, Fort Sam Houston, Texas
9. Burn Center and Department of Trauma and General Surgery, Regions Hospital, St. Paul, Minnesota
10. Department of Surgery, University of Minnesota, Minneapolis
11. Department of Surgey, Hennepin County Medical Center, Minneapolis, Minnesota
12. Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
13. Department of Surgery, Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, North Carolina