〇Akane Sato¹, Masaki Kono¹, Hajime Hayami¹, Gaku Inagawa¹ (1. Yokohama municipal citizen's hospital)

〇Reiko Shibata¹, Hideyuki Takedani², Tutida Rikuhei¹, Kyoji Nishida³, Kumiko ono², Ryo Orii¹ (1. IMSUT Hospital Department of Anesthesia, 2. IMSUT Hospital Department of Joint Surgery, 3. National Hospital Oreganization National Hospital Department of Infectious Diseases)

〇Hirofumi Nakahari¹, Hiroshi Sunagawa², Shintaro Suzuki² (1. Saitama medical center Jichi medical university, 2. Yokosuka general hospital Uwamachi)

〇Sayaka Yamashita¹, Hiroyuki Ito¹, Yudai Yamamoto¹, Tokujiro Uchida¹ (1. Department of Anesthesiology, Tokyo Medical and Dental University)

〇Etsuro Ozawa¹, Sumire Yokokawa¹, Minoru Nomura¹, Makoto Ozaki¹ (1. Tokyo Women's Medical University Anesthesiology)

〇Satoko Kubota¹, Sakurako Miwa¹, Jyunko Fujita¹, Yoshi Misonoo¹ (1. Saitama medical center)