1. Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas.
2. Transitional Learning Center at Galveston, Galveston, Texas.
3. Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, Texas.
4. University of Arkansas for Medical Sciences, Little Rock, Arkansas.
5. Centre for Neuro Skills, Bakersfield, California.
6. Brain Injury Association of America, Grapevine, Texas.