1. J. Crayton Pruitt Department of Biomedical Engineering Gainesville Florida USA
2. Department of Speech, Language, and Hearing Sciences Norman Fixel Institute for Neurological Diseases Gainesville Florida USA
3. Department of Neurologic Rehabilitation Stanford Neuroscience Health Center Palo Alto California USA
4. Department of Neurology Norman Fixel Institute for Neurological Diseases Gainesville Florida USA
5. Department of Neurology Duke University Durham North Carolina USA
6. Department of Neurosurgery Norman Fixel Institute for Neurological Diseases Gainesville Florida USA