Masayuki Masuda¹, Akiyuki Uzawa², Masanori Takahashi³, Hiroyuki Murai⁴, James F Howard, Jr⁵, Renato Mantegazza⁶, Sophie Steeland⁷, Benjamin Van Hoorick⁷, Caroline T'joen⁷, Kimiaki Utsugisawa⁸ (1.Tokyo Medical University, Department of Neurology, Neurology, Japan, 2.Chiba University Hospital, Neurology, Japan, 3.Osaka University Hospital, Neurology, Japan, 4.International University of Health and Welfare, Neurology, Japan, 5.The University of North Carolina, USA, 6.Fondazione Istituto Neurologico Carlo Besta, Italy, 7.argenx, Belgium, 8.Hanamaki General Hospital, Neurology, Japan)

Takao Kiriyama, Takahusa Ando, Akiko Deguchi, Akito Tanaka, Hitoki Nanaura, Hiroshi Kataoka, Kazuma Sugie (Nara Medical University, Department of Neurology, Japan)

Hideo Handa, Akiyuki Uzawa, Manato Yasuda, Yosuke Onishi, Hiroyuki Akamine, Etsuko Ogaya, Satoshi Kuwabara (Chiba University, Department of Neurology, Japan)

Kazuhiro Horiuchi, Takashi Inoue, Kei Oiwa (Department of Neurology, Hakodate Municipal Hospital, Japan)

Hiroyuki Onoue, Hayashi Mizuki, Imai Yuki, Soeda Shin, Maruyama Gen, Miyakawa Kohei, Nakahara Takumi, Horichi Ryo, Numahata Kyoko, Yoshizawa Kenta, Ogawa Tomohiro, Akaiwa Yasuhisa, Miyamoto Tomoyuki (Dokkyo Medical University Saitama Medical Center, Japan)

Akari Takagi, Kenji Yoshimura, Hirokazu Morihata, Takahiro Mitsueda (Osaka City General Hospital, Japan)