^○Masaki Takao¹, Masayuki Ohira² (1.National Center of Neurology and Psychiatry (NCNP) National Center Hospital, Japan, 2.Saitama International Medical Center)

^○Kohsuke Imai (Department of pediatrics, Tokyo Medical and Dental University, Japan)

^○Takayoshi Shimohata (Department of Neurology, Gifu University Graduate School of Medicine, Japan)

^○Kuniyasu Wada, Yoichiro Hashimoto (Department of Neurology, Kumamoto City Hospital, Japan)

^○Yusei Miyazaki (Department of Neurology, NHO Hokkaido Medical Center, Japan)

^○Tsuyoshi Matsumura, Toshio Saito (Department of Neurology, National Hospital Organization Osaka Toneyama Medical Center, Japan)