^○Yoshiya Takayanagi, Naoko Nakamura, Hajime Ikenouchi, Genya Watanabe, Emiko Kawasaki, Kenichi Tsukita, Ryo Sugaya, Tetsuya Chiba, Takaaki Nakamura, Ryuhei Harada, Yasushi Suzuki (Sendai medical center)

^○Hiroshi Komamura¹, Takaaki Nakamura¹, Junpei Kobayashi², Ryuhei Harada¹, Kaoru Endo³, Jun Higuchi¹ (1.Department of Neurology, Sendai city hospital, 2.Division of Neurology, Department of Neuroscience and Sensory Organs, Tohoku University Graduate School of Medicine, 3.Department of stroke neurology, Kohnan hospital)

^○Motohiro Kurosaki¹, Teppei Komatsu², Tomomichi Kitagawa², Satoshi Matsushima³, Takahiro Fukuda⁴, Kimihiko Kaneko⁵, Kennichiro Sakai², Yuka Terasawa², Shusaku Oomoto², Hideki Mimura², Yasuyuki Iguchi² (1.Faculty of medicine, the Jikei university school of medicine, 2.Department of neurology, the Jikei university school of medicine, 3.Department of radeiology, the Jikei university school of medicine, 4.Department of pathology, the Jikei university school of medicine, 5.Department of neurology, Tohoku university school of medicine)

^○Keiichi Mizushima¹, Chika Sato¹, Shoki Sato¹, Akihiko Kudo¹, Ryoji Naganuma¹, Hisashi Uwatoko¹, Shinichi Shirai¹, Ikuko Takahashi¹, Masaaki Matsushima¹, Ichiro Yabe¹, Yutaka Morishima², Toshitaka Seki², Shunsuke Terasaka², Hidenao Sasaki¹ (1.Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, 2.Hokkaido University Graduate School of Medicine, Department of Neurosurgery)

^○Koya Umeda, Daisuke Akita, Koji Shimozono (kenwakai otemachi hospital)

^○Shingo Tsunemi¹, Keita Tanaka², Takahiro Shimizu², Toshiyuki Yanagisawa², Yoko Tsuchihashi², Kenji Isahaya², Naoshi Sasaki², Yasuhiro Hasegawa², Atsushi Tsuruoka³ (1.St Marianna University School of Medicine Clinical Training Center, 2.Department of Neurology, St Marianna University School of Medicine, 3.Department of Neurology, St Marianna University School of Medicine, Yokohama City Seibu Hospital)