^○Shuichi Okonogi, Tamiyuki Oobayashi, Satoshi Ooki, Kiyomitsu Yasuhara, Hanako Hirai, Takao Miki, Tadashi Umeno (Isesaki municipal hospital, isesaki,gunma,Japan)

^○Akihiro Yoshitake, Jun Hayashi, Masato Tochii, Chiho Tokunaga, Akitoshi Takazawa, Hiroaki Izumida, Daisuke Kaneyuki, Toshihisa Asakura, Atsushi Iguchi, Hiroyuki Nakajima (Saitama Medical University, International Medical Center)

^○Satoshi Yamashiro, Mizuki Ando, Syotaro Higa, Ryoko Arakaki, Tatsuya Maeda, Yuya Kise, Hitoshi Inafuku, Takaaki Nagano, Yukio Kuniyoshi (Department of Thoracic and Cardiovascular Surgery, Graduate School of Medicine, University of the Ryukyus)

^○Shinichiro Shimura, Shigeto Odagiri, Kimiaki Okada, Keisuke Ozawa, Goro Kishinami, Takuto Naiki, Yasunori Cho (Department of Cardiovascular Surgery School of Medicine, Tokai University)

^○Kentaro Tamura, Arudo Hiraoka, Toshinori Totsugawa, Genta Chikazawa, Taichi Sakaguchi, Hidenori Yoshitaka (The Sakakibara Institute of Okayama)

^○Wataru Kato, Yuki Goto, Ryota Yamamoto, Tsubasa Yazawa, Sho Akita, Motoshi Kozakai, Keisuke Tanaka, Kazuyoshi Tajima (Nagoya Daini Redcross Hospital)

^○Tetsuya Yamada¹, Hiroyuki Ishibashi¹, Yuki Orimoto¹, Yuki Maruyama¹, Yusuke Imaeda¹, Hiroki Mitsuoka¹, Keijiro Hosokawa¹, Takahiro Arima¹, Katsuhiko Matsuyama², Kojiro Suzuki³, Ikuo Sugimoto⁴ (1.Department of Vascular Surgery, Aichi Medical University, Aichi, Japan, 2.Department of Cardiac Surgery, Aichi Medical University, 3.Department of Radiology, Aichi Medical University, 4.Medical Safety Management Office, Aichi Medical University)