1. Department of Neurology, University of California Los Angeles, Los Angeles, CA,
2. McGill University/Institut de Readaptation de Montreal, Montreal, Canada
3. University of Ottawa Rehabilitation Hospital, Ottawa, Canada
4. Magee Rehabilitation Center/Jefferson University, Philadelphia, PA
5. Department of Biomathematics, University of California Los Angeles, Los Angeles, CA
6. Shepherd Rehabilitation Center, Atlanta, GA
7. Department of Rehabilitation Medicine, Ohio State Univeristy, Columbus, OH
8. University of Florida, Department of Physical Therapy, Gainesville, FL
9. Department of Neurosurgery, University of Louisville, Louisville, Kentucky
10. Rancho Los Amigos National Rehabilitation Center, Downey, CA