1. Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, Minnesota, USA
2. Traumatic Brain Injury Model Systems National Data and Statistical Center, Craig Hospital, Englewood, Colorado, USA
3. Department of Physical Medicine and Rehabilitation, University of Texas Southwestern, Dallas, Texas, USA
4. Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Rehabilitation Hospital of Indiana, Indianapolis, Indiana, USA
5. Center for Mental Health, Gunnison, Colorado, USA
6. Departments of Neurology and Psychiatry, University of Colorado School of Medicine, Aurora, Colorado, USA
7. Brain Injury Research Center, TIRR Memorial Hermann, Houston, Texas, USA
8. Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
9. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts, USA
10. Department of Rehabilitation Medicine and Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
11. Moss Rehabilitation Research Institute, Elkins Park, Pennsylvania, USA
12. Department of Physical Medicine and Rehabilitation, University of Miami-Miller School of Medicine, Miami, Florida, USA
13. Research Department, Craig Hospital, Englewood, Colorado, USA
14. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, Virginia, USA
15. Craig Hospital-Rocky Mountain Regional Brain Injury System, Craig Hospital, Englewood, Colorado, USA
16. Department of Physical Medicine and Rehabilitation, Massachusetts General Hospital, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA