^○Kohei Abe, Manabu Yamasaki, Kunihiko Yoshino, Hiromi Yanagisawa, Atsuyuki Mitsuishi, Hiroyasu Misumi (St. Luke's international hospital)

^○Koki Ikemoto, Satoshi Numata, Sachiko Yamazaki, Satoshi Taniguchi, Tomohito Kanzaki, Kaichiro Manabe, Hiroki Nakatsuji, Hitoshi Yaku (Kyoto prefectual university of medicine, Kyoto, Japan)

^○Yuichiro Hirata, Kojiro Furukawa, Hikaru Uchiyama, Tomohiro Ueda, Tatshushi Onduka, Eiki Tayama, Shigeki Morita (The Department of Cardiovascular Surgery, Kyusyu Medical Center, Fukuoka, Japan)

^○Shigehiko Yoshida, shunnsuke Yamagishi, hideki Kunimoto, Yousuke Yamamoto, Tomokazu Nakahara, Kouhei Sumi (IMS Tokyo Katsuhsika General Hospital ,cardiovasclar Surgery)

^○Yuji Naito, Haruki Niwano, Hiroshi Sugiki, Tatsuya Murakami (Asahikawa City Hospital, Asahikawa city, Japan)