1. Department of Surgery, Washington University School of Medicine, Saint Louis, Missouri.
2. JPS Health System, Fort Worth, Texas.
3. Department of Surgery, Vanderbilt University, Nashville, Tennessee.
4. Department of Surgery, University of Virginia, Charlottesville, Virginia.
5. Division of Pediatric Surgery, Children's National Medical Center, Washington, DC.
6. Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
7. Department of Surgery, University of Kentucky, Lexington, Kentucky.
8. Trauma Department, Abrazo West Campus, Goodyear, Arizona.
9. Division of Pediatric Surgery, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
10. Department of Surgery, Hofstra Northwell School of Medicine, Hempstead, New York.
11. Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.
12. Departments of Surgery and Pediatrics, Hofstra-Northwell School of Medicine, Hempstead, New York.