1. University Hospital Antwerp, Antwerp, Belgium.
2. Craig Hospital, Englewood, Colorado.
3. University of Cambridge, Cambridge, United Kingdom.
4. Phoenix Children's Neuroscience Institute, Phoenix, Arizona.
5. Walter Reed Army Institute of Research, Washington, D.C.
6. University of Miami Miller School of Medicine, Miami, Florida.
7. University Hospital Heidelberg, Heidelberg, Germany.
8. Mount Sinai School of Medicine, New York, New York.
9. U.S. Army Institute of Surgical Research, Fort Sam Houston, San Antonio, Texas.
10. Defense and Veterans Brain Injury Center, and Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, Virginia.
11. Baylor College of Medicine, Houston, Texas.
12. University of Washington, Seattle, Washington.
13. Seton Brain and Spine Institute, Austin, Texas.
14. Boston VA Health Care System and Boston University School of Medicine, Boston, Massachusetts.
15. Northwestern University, Chicago, Illinois.
16. Emory University School of Medicine, Atlanta, Georgia.
17. Defense and Veterans Brain Injury Center, Washington, D.C.