1. Department of Health Science, University of Alabama, Tuscaloosa, Alabama, USA
2. Department of Psychology, University of Kentucky, Lexington, Kentucky, USA
3. Department of Psychology, Saint Joseph’s University, Philadelphia, Pennsylvania, USA
4. Clinical Research Director, Tallahassee Orthopedic Clinic, Department of Nutrition, Food and Exercise Sciences Florida State, University Institute of Sports Sciences & Medicine Tallahassee, Tallahassee, Florida, USA
5. Department of Kinesiology, Michigan State University, East Lansing, Michigan, USA
6. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital and Spaulding Research Institute, MassGeneral Hospital for Children Sports Concussion Program; & Home Base, a Red Sox Foundation and Massachusetts General Hospital Program, Charlestown Navy Yard, Charlestown, Massachusetts, USA