1. From the Department of Neuroscience (M.S., R.C., S.L., M.B., L.P.), Marche Polytechnic University, Ancona; Department of Clinical Neurology (C.A., F.V.), University Campus Bio-Medico, Rome; Department of Geriatric Medicine (C.P.), University Campus Bio-Medico, Rome; and Department of Clinical Neurology (C.B.), University of Perugia, Perugia, Italy.