Kaori Sumi, Teruaki Masuda, Yuko Akiyoshi, Noriyuki Kimura, Etsuro Matsubara (Department of Neurology, Graduate School of Medical Sciences, Oita University, Japan)

Kenta Tominaga¹, Masayuki Ueda¹, Kaori Sakuishi², Masashi Hamada¹, Tatsushi Toda¹ (1.Department of Neurology, The University of Tokyo Hospital, Japan, 2.Department of Neurology, Teikyo University Chiba Medical Center, Japan)

Yamato Nakamura^1,2, Masanori Sawamura¹, Hiroshi Yamada², Hiroaki Yagi³, Aya Muramatsu⁴, Makoto Suzuki⁴, Tatsuhiko Miyazaki⁵, Akinobu Hori², Hiroaki Tanaka², Yusuke Katsuyama², Hidefumi Yoshida², Kang Kim², Kiyoshi Harada², Ryosuke Takahashi¹ (1.Department of Neurology, Kyoto University Hospital, Japan, 2.Department of Neurology, Shizuoka General Hospital, Japan, 3.Department of Dermatology, Shizuoka General Hospital, Japan, 4.Department of Pathology, Shizuoka General Hospital, Japan, 5.Department of Pathology, Gifu University Hospital, Japan)

Kentaro Deguchi¹, Tomohito Kawano¹, Akinori Kinoshita¹, Shoko Deguchi¹, Hiroshi Wakabayashi² (1.Department of Neurology, Okayama city hospital, Japan, 2.Department of Rheumatology, Okayama City Hospital, Japan)

Go Kurosawa¹, Takamichi Kanbayashi¹, Yuki Hagiwara², Jyunpei Yamamoto¹, Yuichi Furukawa¹, Keiichi Hokkoku¹, Yuki Hatanaka¹, Shunsuke Kobayashi¹, Masahiro Sonoo¹ (1.Teikyo University School of Medicine, Japan, 2.Itabashi Chuo Medical Center, Japan)

Kanae Fujisawa, Shoko Tanaka, Akiko Abe, Dan Abe, Nozomu Matsuda, Toshiki Nakahara, Kazuaki Kanai (Fukushima Medical University, Department of Neurology, Japan)