1. Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA;
2. Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA;
3. Department of Community Health and Family Medicine, University Athletic Association, University of Florida, Gainesville, FL, USA;
4. Independent Practice, Sarasota, FL, USA;
5. Michigan Concussion Center, School of Kinesiology, University of Michigan, Ann Arbor, MI, USA;
6. Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA;
7. Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA