1 Department of Neurology (TY, IM, KS, TM), Graduate School of Medical Science, and Department of Neurology (MN), North Medical Center, Kyoto Prefectural University of Medicine; Department of Neurology (YK), Osaka University Graduate School of Medicine; Department of Neurology (KP), National Hospital of Utano, Kyoto; Department of Neurology (YI), Faculty of Medicine, Saitama Medical University; and Department of Neurology (SH), Hiroshima City Asa Hospital, Japan.