1. Department of Neurology, Traumatic Brain Injury and Concussion Center, University of Utah School of Medicine, Salt Lake City, Utah, USA.
2. Department of Mathematics, United States Naval Academy, Annapolis, Maryland, USA.
3. H. Milton Stewart School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA.
4. Department of Physical Medicine and Rehabilitation, Uniformed Services University, Bethesda, Maryland, USA.
5. Department of Psychiatry, Indiana University School of Medicine, Indianapolis, Indiana, USA.
6. Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
7. Michigan Concussion Center, University of Michigan, Ann Arbor, Michigan, USA.