^○Hisashi Uemura, Hiroe Tanaka, Masataka Mitsuno, Mitsuhiro Yamamura, Masaaki Ryomoto, Naosumi Sekiya, Daisuke Ueda, Ryota Matsuto, Yuji Miyamoto (Hyogo College of Medicine)

^○Hidetaka Wakiyama, Mayuko Yamamoto, Toshihito Sakamoto, Ayako Maruo, Hidefumi Ohbo, Masahiro Yamaguchi (Kakogawa Central City Hospital)

^○Tomoki Cho, Keiji Uchida, Norihisa Karube, Tomoyuki Minami, Yusuke Matsuki, Hiroko Nemoto, Naoto Yabu, Yoshihiro Kushida, Norio Kikunishi, Mihwa Ju, Munetaka Masuda (Yokohama city University medical center)

^○Michiya Hanyu, Manabu Morishima, Fumie Takai (Kitano Hospital, the Tazuke Kofukai Medical Reseach Institute)

^○Masayuki Sakaki^1,2, Toshihiro Onohara², Nobuhiro Handa², Masafumi Yamashita², Minoru Okamoto², Tsuyoshi Yamamoto², Yasushi Shimoe², Fuminori Kasashima², Masakazu Kawasaki², Masahiro Okada², Katsutoshi Sato², Masahiro Ryugou², Katsuhiko Imai², Shingo Ishiguro² (1.National Hospital Organization Osaka National Hospital, 2.National Hospital Organization Network Study Group)

^○Mitsuhito Kuuriyama, Kenji Yoshida, Daichi Edaki, Yukio Kioka (Fukuyama City Hospital)

^○Atsushi Sugaya, Tatsuhiko Komiya, Takeshi Shimamoto, Michihito Nonaka, Takehiko Matsuo, Junya Kitaura, Yoshimasa Furuichi, Taiyou Jinno, Taku Shirakami, Masaya Hirayama, Koji Miura, Atsushi Yano (Kurashiki Central Hospital)

^○Yoshio Mori, Yukihiro Matsuno, Yukio Umeda, Hiroshi Takiya (Department of cardiovascular surgery, Gifu Prefectural General Medical Center, Gifu, Japan)