1 From the Department of Neurology and Neurosurgery (D.R.), University of Rochester Medical Center; and Department of Neurosurgery (E.N.-Z.), Albany Medical Center, NY. debra_roberts@urmc.rochester.edu.
2 From the Department of Neurology and Neurosurgery (D.R.), University of Rochester Medical Center; and Department of Neurosurgery (E.N.-Z.), Albany Medical Center, NY.