1. Vanderbilt Sports Concussion Center, Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
2. Khoury College of Computer Science, Northeastern University – Seattle, Seattle, Washington, USA.
3. College of Osteopathic Medicine, University of New England, Biddeford, Maine, USA.
4. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA.
5. Mass General for Children Sports Concussion Program, Waltham, Massachusetts, USA.
6. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and the Schoen Adams Research Institute at Spaulding Rehabilitation, Charlestown, Massachusetts, USA.