1. Sherrilene Classen, PhD, MPH, OTR/L, is Director, Institute for Mobility, Activity and Participation, and Associate Professor, Department of Occupational Therapy, College of Public Health and Health Professions, University of Florida, PO Box 100164, Gainesville, FL 32611-0164; sclassen@phhp.ufl.edu
2. D. P. Witter, PhD, is Student, University of Florida College of Medicine, Gainesville
3. D. N. Lanford, MOT, CDRS, is Certified Driving Rehabilitation Specialist, Institute for Mobility, Activity and Participation, University of Florida, Gainesville
4. M. S. Okun, MD, is Co-Director; R. L. Rodriguez, MD, is Clinic Director; J. Romrell, PA, is Faculty; and I. Malaty, MD, is Assistant Professor of Neurology, Movement Disorders Center, Department of Neurology, University of Florida, Gainesville
5. H. H. Fernandez, MD, is Neurologist, Cleveland Clinic, Cleveland, Ohio. At the time of the study, he was Director of Clinical Trials, Movement Disorders Center, Department of Neurology, University of Florida, Gainesville