1. Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
2. University Medical Center, New Orleans, Louisiana
3. University of Alabama-Birmingham, Birmingham, Alabama
4. University of North Carolina, Chapel Hill, North Carolina
5. U.S. Army Institute for Surgical Research, Fort Sam Houston, Texas
6. University of South Florida, Tampa, Florida
7. Maricopa Health System, Phoenix, Arizona
8. University of Indiana, Indianapolis, Indiana
9. Virginia Commonwealth University, Richmond, Virginia Commonwealth University, Richmond, Virginia
10. MedStar Washington Hospital Center, Washington, District of Columbia
11. University of Florida, Gainesville, Florida
12. University of California Davis, Sacramento, California
13. Texas Tech University Health Sciences Center, Lubbock, Texas
14. University of Tennessee, Memphis, Tennessee