^○Akira Inukai, Misaki Sato, Satoko Sakakibara, Rina Hashimoto, Taiji Katayama, Masakuni Kenjo, Yuki Yokokawa, Yufuko Saito, Ikuko Aiba, Satoshi Okuda (NHO Higashinagoya National Hospital, Japan)

^○Miwako Kido¹, Kensuke Tanigawa¹, Hiroshi Senoo¹, Yoshihisa Fujiwara¹, Natsumi Fujisaki¹, Ryo Nakachi¹, Takashi Takashiki¹, Shugo Suwazono² (1.National hospital organization Okinawa national hospital division of Neurology, Japan, 2.National hospital organization Okinawa national hospital Center for Clinical Neuroscience)

^○Kiyomi Nagumo (Ushioda General Hospital, Department of Neurology, Japan)

^○Muneto Tatsumoto¹, Mitsumasa Umezawa², Kayoko Suzuki¹, Norie Kawano¹, Gen Kobashi², Koichi Hirata³, Keiichi Kubota⁴, Hiroshi Taneichi^1,5 (1.Medical Safety Management Center, Dokkyo Medical University Hospital, Japan, 2.Department of Public Health, Dokkyo Medical University, 3.Dokkyo Medical University, 4.Second Department of Surgery, Dokkyo Medical University, 5.Department of Orthopaedic Surgery, Dokkyo Medical University)