^○Shun Akaike¹, Tomoko Okamoto¹, Wakiro Sato², Youwei Lin¹, Takashi Yamamura², Yuji Takahashi¹ (1.Department of Neurology, National Centre Hospital, National Centre of Neurology and Psychiatry, Japan, 2.Department of Immunology, National Institute of Neuroscience, National Centre of Neurology and Psychiatry)

^○Masayuki Masuda¹, Hiroyuki Murai², Yasushi Suzuki³, Shingo Konno⁴, Makoto Samukawa⁵, Takamichi Sugimoto⁶, Daisuke Yamamoto⁷, Antonio Guglietta⁸, Peter Ulrichts⁸, T'joen Caroline⁸, Tomihiro Imai⁹, Masanori Takahashi¹⁰, Akiyuki Uzawa¹¹, Kimiaki Utsugisawa¹² (1.Department of Neurology, Tokyo Medical University, Japan, 2.Department of Neurology, Osaka University Hospital, Suita, Japan, 3.Department of Neurology Graduate School of Medicine, Chiba University, Chiba, Japan, 4.Department of Neurology, Hanamaki General Hospital, 5.Department of Neurology, School of Medicine, International University of Health and Welfare, Tokyo, Japan, 6.Department of Neurology, National Hospital Organization Sendai Medical Center, 7.Department of Neurology, Toho University Ohashi Hospital Medical Center, 8.Department of Medicine, Kindai University Hospital, 9.Department of Clinical Neuroscience and Therapeutics, Hiroshima University, 10.Department of Neurology, Sapporo Medical University Hospital, Sapporo, Japan, 11.argenx, 12.Department of Neurology, National Hospital Organization Hakone Hospital)

^○Masaaki Niino¹, Shoko Fukumoto², Tatsusada Okuno³, Nobuo Sanjo⁴, Hikoaki Fukaura⁵, Masahiro Mori⁶, Takashi Ohashi⁷, Hideyuki Takeuchi⁸, Yuko Shimizu⁹, Juichi Fujimori¹⁰, Izumi Kawachi^11,12, Jun-ichi Kira², Eri Takahashi¹, Yusei Miyazaki¹, Nobuhiro Mifune¹³ (1.Department of Clinical Research, NHO Hokkaido Medical Center, Japan, 2.Division of Neurology, Tohoku Medical and Pharmaceutical University, 3.Department of Neurology, Brain Research Institute, Niigata University, 4.Medical Education Center, Niigata University School of Medicine, 5.School of Economics and Management, Kochi University of Technology, 6.Department of Neurology, Kyushu University, 7.Department of Neurology, Osaka University Graduate School of Medicine, 8.Department of Neurology and Neurological Science, Tokyo Medical and Dental University, 9.Department of Neurology, Saitama Medical Center, Saitama Medical University, 10.Department of Neurology, Chiba University, 11.Department of Neurology, Tokyo Women's Medical University Yachiyo Medical Center, 12.Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, 13.Department of Neurology, Tokyo Women's Medical University School of Medicine)

^○Kenzo Sakurai¹, Kenji Isahaya¹, Takeshi Imai¹, Yoko Tsuchihashi², Naoki Takao³, Yoshihisa Yamano¹ (1.St. Marianna University School of Medicine, Department of Neurology, Japan, 2.Machida Municipal Hospital, Department of Neurology, 3.St. Marianna University School of Medicine, Toyoko Hospital, Department of Neurology)

^○Satoru Oji¹, Masaomi Yamamoto¹, Baku Hashimoto¹, Atsuo Miyauchi¹, Wataru Hara¹, Shoko Izaki¹, Tomohisa Dembo¹, Hikoaki Fukaura¹, Kyoichi Nomura^1,2, Ken-ichi Kaida¹ (1.Department of Neurology, Saitama Medical Center, Saitama Medical University, Japan, 2.Higashimatsuyama Municipal Hospital)

^○Saro Kobayashi¹, Norito Kokubun¹, Hazuki Matsuda^2,3, Keisuke Suzuki¹ (1.Department of Neurology, Dokkyo Medical University, Japan, 2.Department of Neurosurgery, Dokkyo Medical University, 3.Department of Pathology, Dokkyo Medical University)