Robert L Glover1, Allan L Brook1, Mary R Welch2. 1. From the Department of Neurology (R.L.G., M.R.W.), Montefiore Medical Center, and Departments of Clinical Radiology and Neurological Surgery (A.L.B.), Albert Einstein College of Medicine, Bronx, NY. 2. From the Department of Neurology (R.L.G., M.R.W.), Montefiore Medical Center, and Departments of Clinical Radiology and Neurological Surgery (A.L.B.), Albert Einstein College of Medicine, Bronx, NY. mawelch@montefiore.org.