^○Kentaro Akabane, Tetsuro Uchida, Azumi Hamasaki, Yoshinori Kuroda, Masahiro Mizumoto, Atsushi Yamashita, Syuto Hirooka, Ai Ishizawa, Mitsuaki Sadahiro (Yamagata University Hospital)

^○MASANOBU YAMAUCHI, TOMOKI HANADA, SATOSHI KAMIHIRA, KAZUMA KANETSUKI (SHIMANE PREFECTURAL CENTRAL HOSPITAL, IZUMO, JAPAN)

^○Yumi Kando, Norihiko Shiiya, katushi Yamashita, Naoki Washiyama, Daisuke Takahashi, Kazumasa Tsuda, Yuuko Oohashi (First Department of Surgery, Hamamatsu University School of Medicine ,Hamamastu, Japan)

^○Daisuke Endo, Taira Yamamoto, Hiroaki Hata, Kenji Kuwaki, Shizuyuki Dohi, Satoshi Matsushita, Kan Kajimoto, Akie Shimada, Atsumi Oishi, Jiyoung Lee, Yuki Kamikawa, Atsushi Amano (Juntendo University)

^○HIROYUKI TSUKUI, Shizuko Iwasa, Kenji Yamazaki (Hokkaido Cardiovascular Hospital)