^○Ryo Tokimura¹, Akiko Abe¹, Shunsuke Kobayashi^1,2, Kenji Yoshida¹, Takenobu Murakami³, Nozomu Matsuda¹, Chikako Kaneko⁴, Mari Honma⁵, Yoshikazu Ugawa⁶, Kazuaki Kanai¹ (1.Department of Neurology, Fukushima Medical University, 2.Department of Neurology, Teikyo University, 3.Department of Neurology, Tottori Prefectural Kousei Hospital, 4.Department of Neurology, Southern Tohoku General Hospital, 5.Department of Neurology, Masu Memorial Hospital, 6.Department of Human Neurophysiology, Fukushima Medical University)

^○Kyoko Hamada¹, Ri-ichiro Kishimoto¹, Tatsuhiko Yuasa² (1.Shin-Sapporo Neurosurgery Hospital, 2.Kamagaya General Hospital)

^○Yusuke Matsumoto, Kawasaki Reiko, Yu Nagashima, Kaori Sakuishi, Atsushi Iwata, Tatsushi Toda (Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan)

^○Keigo Nobukuni¹, Yutaka Fujisawa¹, Masato Seike², Tsukasa Kusuki², Youko Koan², Sho Nishii² (1.Department of Neurology,Izumino Hospital, 2.Department of neurosurgery,Izumino Hospital)

^○Kensuke Kakiuchi¹, Masakazu Sugino¹, Akihiro Tsukahara¹, Hiroki Tani¹, Kaoru Gouda², Hirofumi Yamaoka³, Taeko Araki³, Kumiko Otsuki³, Manaka Yamada³, Hiroko Nonomura³ (1.Aino Hospital, Department of Neurology, 2.Aino Hospital, Department of Otolaryngology, 3.Aino Hospital, Department of Rehabilitation)

^○Megumi Saruwatari^1,2, Midori Sagawa^1,2, Aya Kumon^1,3, Kazuko Hasegawa¹ (1.National Sagamihara Hospital, 2.Sagamihara Counseling Room, 3.Kawashima Neurology Clinic)

^○Tomoko Komagamine¹, Keisuke Suzuki¹, Norito Kokubun¹, Junpei Komagamine², Koichi Hirata¹ (1.Department of Neurology, Dokkyo Medical University, 2.Department of Internal Medicine, National Hospital Organization Tochigi Medical Center)

^○Kenichi Sakajiri, Eisyun Nitta (Kanazawa Medical Center Department of Neurology)

^○Yoshiharu Nakae¹, Tamaki Yoshida¹, Dan Takei¹, Masayuki Furuya¹, Fumiaki Tanaka² (1.Department of Neurology, Saiseikai Yokohamashi Nanbu Hospital, 2.Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine)