^○Kinya Matsuo, Yasuteru Sano, Michiaki Koga, Motoharu Kawai, Takashi Kanda (Department of Neurology and Clinical Neuroscience, Yamaguchi University Graduate School of Medicine)

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

^○Kiku Uwatoko¹, Hiroshi Takashima¹, Hiroshi Sugimori², Naoko Yatsunami³, Shinya Azama⁴, Masanori Masuda⁵, Daisuke Mori⁵, Tetsuya Kondo⁶ (1.Saga-ken Medical Centre Koseikan Department of Neurology, 2.Saga-ken Medical Centre Koseikan Department of Cerebrovascular Medicine, 3.Saga-ken Medical Centre Koseikan Department of Obstetrics and Gynecology, 4.Saga-ken Medical Centre Koseikan Department of Radiology, 5.Saga University Hospital Department of Diagnostic Pathology, 6.Saga University Hospital Department of Radiology)

^○Akira Nishikawa, Tomohiro Takenaka, Yuuki Miyazaki, Kanako Asai, Emi Shirahata, Yasuyoshi Kimura, Noriko Miyashita, Hisae Sumi, Takashi Naka (HigashiOsaka City Medical Center)

^○Yumiko Nakano, Shunya Fujiwara, Hisashi Narai, Yasuhiro Manabe (Department of Neurology, Okayama Medical Center)

^○Yasuko Hanaoka¹, Junji Ikeda¹, Ken Takasone¹, Nobuhiko Ohashi², Ken-ichi Ueno¹, Yasuhiro Shimojima¹, Yoshiki Sekijima¹ (1.Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicene, 2.Department of Neurology, Okaya City Hospital)

^○Naoki Kotsuki¹, Youwei Lin^1,2, Wakiro Sato², Tomoko Okamoto¹, Yuji Takahashi¹, Takashi Yamamura² (1.Department of Neurology, National Center of Neurology and Psychiatry, 2.Department of Immunology, National Institute of Neuroscience, National Center of Neurology and Psychiatry)

^○Masakazu Nakamura¹, Hiroaki Nishimura¹, Kazuyoshi Shinpo¹, Shuichi Koshimizu¹, Mika Otsuki¹, Izumi Koyanagi², Akihiko Ogata¹ (1.Department of Neurology, Hokkaido Neurosurgical Memorial Hospital, 2.Department of Neurosurgery, Hokkaido Neurosurgical Memorial Hospital)

^○Kenichiro Sato, Tatsuo Mano, Atsushi Iwata, Tatsushi Toda (Department of Neurology, the University of Tokyo Hospital)

^○Junji Ikeda, Tsuneaki Yoshinaga, Minori Kodaira, Yasuhiro Shimojima, Yoshiki Sekijima (Department of Medicine (Neurology and Rheumatology),Shinshu University School of Medicine)