1. University of British Columbia and GF Strong Rehab Centre, Vancouver, British Columbia, Canada.
2. Centre for Translational Neuroscience and Mental Health, School of Medicine and Public Health, University of Newcastle, Waratah, New South Wales, Australia.
3. Department of Emergency Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
4. Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada.
5. Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada.
6. Department of Physical Medicine and Rehabilitation, Harvard Medical School; Spaulding Rehabilitation Hospital; Massachusetts General Hospital Sport Concussion Clinic; and Red Sox Foundation and Massachusetts General Hospital Home Base Program, Charlestown, Massachusetts.