1. Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
2. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
3. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and the Schoen Adams Research Institute at Spaulding Rehabilitation, Charlestown, Massachusetts, USA
4. MassGeneral Hospital for Children Sports Concussion Program, Boston, Massachusetts, USA
5. Home Base, A Red Sox Foundation and Massachusetts General Hospital Program, Charlestown, Massachusetts, USA
6. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts, USA
7. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Schoen Adams Research Institute at Spaulding Rehabilitation, Massachusetts General Hospital, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, USA