1 From the Department of Neurology (A.V.), Massachusetts General Hospital, Harvard Medical School, Boston; and Neuropsychology Section (L.M.), Departments of Psychiatry and Neurology, University Hospital of Patras, University of Patras Medical School, Rio, Greece. avidenovic@mgh.harvard.edu.
2 From the Department of Neurology (A.V.), Massachusetts General Hospital, Harvard Medical School, Boston; and Neuropsychology Section (L.M.), Departments of Psychiatry and Neurology, University Hospital of Patras, University of Patras Medical School, Rio, Greece.