^○Keita Ishizuka, Shinya Narukawa, Tethuro Yamaga, Baku Hashimoto, Athuo Miyauti, Mayumi Furuya, Satoru Tanaka, Masato Suzuki, Akane Saito, Akihiro Kubota, Takashi Tajima, Wataru Hara, Shoko Izaki, Norihito Yoshida, Satoru Oji, Tomohisa Dembo, Hikoaki Fukaura, Kyoichi Nomura (saitama medical center)

^○Eri Hoshino, Shinsuke Tobisawa, Yasuyuki Takai, Eiji Isozaki (Department of Neurology, Tokyo Metropolitan Neurological Hospital)

^○Chizuru Akimoto^1,2, Hisashi Suzuki¹, Masando Nakazawa¹, Hideharu Kurita¹, Masanori Funakoshi¹ (1.Tochigi Rehabilitation Center, 2.Juchi Medical University)

^○Mikiko Motoki, Takahiko Hirose, Kiichi Unoda, Kazushi Yamane, Shimon Ishida, Hideto Nakajima, Fumiharu Kimura, Shigeki Arawaka (Osaka Medical College)

^○Sonoko Misawa¹, Kuwabara Satoshi¹, Yasunori Sato², Yukari Sekiguchi¹, Nobuko Yamaguchi², Kanako Katayama², Yuta Iwai^1,3, Hiroshi Amino¹, Tomoki Suichi¹, Susumu Kusunoki³, JET-GBS study group^1,2,3 (1.Department of Neurology, Chiba University Graduate School of Medicine, 2.Clinical Research Center, Chiba University Hospital, 3.Department of Neurology, Kindai University Faculty of Medicine)

^○Yoshitsugu Nakamura^1,2, Akihiro Tsukahara^1,2, Takahiko Hirose¹, Takafumi Hosokawa¹, Hideto Nakajima¹, Masakazu Sugino^1,2, Fumiharu Kimura¹, Shigeki Arawaka¹ (1.Division of Neurology, Department of Internal Medicine IV, Osaka Medical College, 2.Division of Neurology, Aino Hospital)

^○Atsuro Chiba, Ayumi Uchibori, Atsuko Gyohda (Department of Neurology, Faculty of Medicine, Kyorin University)