1. Department of Neurology and Neurotherapeutics, The University of Texas Southwestern Medical Center, Dallas, Texas.
2. Department of Psychiatry, The University of Texas Southwestern Medical Center, Dallas, Texas.
3. Baylor Institute for Rehabilitation, Baylor Health Care System, Dallas, Texas.
4. Division of Physical Medicine and Rehabilitation, University of Alberta, Edmonton, Alberta, Canada.
5. Department of Neurosurgery, The University of Texas Southwestern Medical Center, Dallas, Texas.
6. Department of Neurological Surgery, University of Washington, Seattle, Washington.
7. Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Rockville, Maryland.