1. From the 1st Department of Neurology (N.S.), Aiginition Hospital, National and Kapodistrian University of Athens, Medical School, Greece; Department of Neurology (N.S.), Columbia University, New York, NY; Aging Research Center (B.H.), Karolinska Institute, Stockholm, Sweden; and Department of Psychiatry and Psychotherapy (B.H.), University Hospital LMU Munich, Germany.