1. Department of Applied Physiology and Wellness, Simmons School of Education and Human Development, Southern Methodist University, Dallas, Texas.
2. Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, Texas.
3. Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
4. Department of Clinical Science and Psychiatry, University of Texas Southwestern Medical Center, Dallas, Texas.
5. Department of Pediatrics/Division of Pediatric Neurology & Pain Management, University of Texas Southwestern Medical Center, Dallas, Texas.