1. From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.).