^○Takura Taguchi, Hirokazu Ohashi, Shohei Yamada, Satoshi Asada, Shunsuke Saito, Masahiro Ryugo, Osamu Monta, Yasushi Tsutsumi (Fukui cardiovascular center)

^○Chiba Kiyoshi, kita Shouta, Suzuki Hirotoshi, Ro Daijun, Ono Hirokuni, Ono Makoto, Chikada Masahide, Nishimaki Hiroshi, Miyairi Takeshi (St. Marianna University School of medicine, Kanagawa, Japan)

^○Kentaro Umemura, Toshihito Gomibuchi, Kazuki Naito, Toru Mikoshiba, Kai Machida, Masaki Komatsu, Haruki Tanaka, Hajime Ichimura, Takateru Yamamoto, Noburo Ohashi, Yuko Wada, Tatsuichiro Seto, kenji Okada (Shinshu University School of Medicine Department of Cardiovascular Surgery)

^○Miki Takeda, Wakiko Hiranuma, Takayuki Matsuoka, Tadanori Minakawa, Takuya Shimizu, Makoto Miura, Shunsuke Kawamoto (TOHOKU MEDICAL AND PHARMACEUTICAL UNIVERSITY HOSPITAL, SENDAI, MIYAGI)

^○Ryoji Kinoshita, Susumu Manabe, Daiki Hirayama, Norihisa Yuge, Hidetoshi Uchiyama, Sotarou Katsui, Masahiro Oonuki, Kazunobu Hirooka (Tsuchiura Kyodo General Hospital, Department of Cardiovascular Surgery)