1. Department of Surgery, The University of Virginia Health System, Charlottesville, Virginia.
2. Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee.
3. Department of Surgery, University of North Texas John Peter Smith Hospital, Fort Worth, Texas.
4. Department of Surgery, University of Washington, Seattle, Washington.
5. Department of Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
6. Department of Surgery, Abrazo West Campus, Goodyear, Arizona.
7. Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts.
8. Department of Surgery, University of Michigan, Ann Arbor, Michigan.
9. Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida.
10. Department of Surgery, University of South Carolina, Columbia, South Carolina.
11. Department of Surgery, Univeristy of Minnesota Medical School, Minneapolis, Minnesota.
12. United States Air Force, Norfolk, Virginia.
13. Department of Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, Michigan.