1 From the Department of Neurology (T.N., T.U., R.H., A.A., M.B.), Aomori Prefectural Central Hospital; and Department of Neurology (M.T.), Institute of Brain Science, Hirosaki University Graduate School of Medicine, Japan. t.nakamura@hirosaki-u.ac.jp.
2 From the Department of Neurology (T.N., T.U., R.H., A.A., M.B.), Aomori Prefectural Central Hospital; and Department of Neurology (M.T.), Institute of Brain Science, Hirosaki University Graduate School of Medicine, Japan.