1. Department of Neurosciences and Rehabilitation, Tampere University Hospital, Tampere, Finland.
2. Institute of Behavioural Sciences, University of Helsinki, Finland.
3. Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, British Columbia.
4. GF Strong Rehab Centre, Vancouver, British Columbia.
5. School of Health Sciences, University of Tampere and Science Center, Tampere, Finland.
6. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Charlestown, Massachusetts.
7. MassGeneral Hospital for Children Sports Concussion Program, Boston, Massachusetts.
8. Red Sox Foundation and Massachusetts General Hospital Home Base Program, Boston, Massachusetts.