1. National Rehabilitation Hospital, Georgetown University School of Medicine, District of Columbia VAMC, Washington, DC
2. Johns Hopkins Urban Health Institute, Johns Hopkins School of Medicine, Johns Hopkins School of Public Health, Baltimore, MD
3. Departments of Kinesiology-Occupational Therapy Program, Neurology and Medicine, University of Wisconsin, Madison, Madison, WI
4. National Rehabilitation Hospital, Washington, DC
5. University of Michigan, Ann Arbor, MI
6. MedStar Health Research Institute, Hyattsville, MD; Georgetown University School of Medicine, Washington DC
7. Department of Neurology, Howard University Hospital, Washington, DC
8. UCLA Medical Center, Los Angeles, CA
9. Georgetown University, Georgetown University Stroke Center, Washington, DC