1. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
2. Spaulding Rehabilitation Hospital and Spaulding Research Institute, Boston, Massachusetts, USA
3. MassGeneral Hospital for Children™ Sports Concussion Program, Boston, Massachusetts, USA
4. Home Base, A Red Sox Foundation and Massachusetts General Hospital Program, Boston, Massachusetts, USA
5. Hunter New England Local Health District, Sports Concussion Program, University of Newcastle, Callaghan, NSW, Australia
6. Centre for Stroke and Brain Injury, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
7. Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
8. Department of Neurological Surgery, Orthopaedic Surgery and Rehabilitation, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
9. Department of Psychiatry and Behavioral Sciences, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
10. Vanderbilt Sports Concussion Center, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
11. The Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre - Austin Campus, Heidelberg, Victoria Australia
12. College of Sciences, University of Texas, San Antonio; San Antonio, Texas, USA
13. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
14. Department of Pathology, Division of Neuropathology, University of Washington School of Medicine, Seattle, Washington, USA
15. Department of Pathology, Anatomy and Laboratory Medicine, West Virginia University School of Medicine, Morgantown, USA
16. Department of Neuroscience, Rockefeller Neuroscience Institute, West Virginia University School of Medicine, Morgantown, USA