1. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
2. Department of Kinesiology, Brain Research and Assessment Initiative of New Hampshire Laboratory, University of New Hampshire, Durham, New Hampshire, USA
3. Environmental Influences on Health & Disease Group, Sanford Research, Sioux Falls, South Dakota, USA
4. Department of Athletic Training, Duquesne University, Pittsburgh, Pennsylvania, USA
5. Department of Athletic Training, College of Health Sciences, University of Lynchburg, Lynchburg, Virginia, USA
6. Departments of Psychiatry and of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, Texas, USA
7. Department of Psychiatry & Neurobehavioral Sciences, University of Virginia School of Medicine, Charlottesville, Virginia, USA
8. Department of Kinesiology, University of Virginia, Charlottesville, Virginia, USA