1. Department of Neurology, University of Florida, Gainesville, Fl, USA
2. Department of Neurology, University of Rochester, Rochester, New York, USA
3. Distinguished Professor Emeritus, Department of Neurology, University of Florida College of Medicine & Neurologist-Geriatric Research, Education, and Clinical Center Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA
4. Vascular Neurology, Department of Neurology, University of Florida Gainesville, USA