^○Hitaru Kishida¹, Fumiaki Tanaka² (1.Department of Neurology, Yokohama City University Medical Center, Japan, 2.Department of Neurology and Stroke Medicine, Yokohama City University)

^○Takahisa Deguchi (Clinical Training Center, Kagoshima University Hospital, Japan)

^○Mitsuharu Ueda (Department of Neurology, Kumamoto University, Japan)

^○Takashi Nakajima (Department of Neurology, National Hospital Organization Niigata National Hospitalpa, Japan)