Hideyuki Ishida¹⁾, Tatsuro Yamaguchi²⁾, Kohji Tanakaya³⁾, Kiwamu Akagi⁴⁾, Yasuhiro Inoue⁵⁾, Kensuke Kumamoto⁶⁾, Hideki Shimodaira⁷⁾, Shigeki Sekine⁸⁾, Toshiaki Tanaka⁹⁾, Akiko Chino¹⁰⁾, Naohiro Tomita¹¹⁾, Takeshi Nakajima¹²⁾, Hirotoshi Hasegawa¹³⁾, Takao Hinoi¹⁴⁾, Akira Hirasawa¹⁵⁾, Yasuyuki Miyakura¹⁶⁾, Yoshie Murakami¹⁷⁾, Kei Muro¹⁸⁾, Yoichi Ajioka¹⁹⁾, Yojiro Hashiguchi²⁰⁾, Yoshinori Ito²¹⁾, Yutaka Saito²²⁾, Tetsuya Hamaguchi²³⁾, Megumi Ishiguro²⁴⁾, Soichiro Ishihara⁹⁾, Yukihide Kanemitsu²⁵⁾, Hiroshi Kawano²⁶⁾, Yusuke Kinugasa²⁷⁾, Norihiro Kokudo²⁸⁾, Keiko Murofushi²⁹⁾, Takako Nakajima³⁰⁾, Shiro Oka³¹⁾, Yoshiharu Sakai³²⁾, Akihiko Tsuji³³⁾, Keisuke Uehara³⁴⁾, Hideki Ueno³⁵⁾, Kentaro Yamazaki³⁶⁾, Masahiro Yoshida³⁷⁾, Takayuki Yoshino³⁸⁾, Narikazu Boku²³⁾, Takahiro Fujimori³⁹⁾, Michio Itabashi⁴⁰⁾, Nobuo Koinuma⁴¹⁾, Takayuki Morita⁴²⁾, Genichi Nishimura⁴³⁾, Yuh Sakata⁴⁴⁾, Yasuhiro Shimada⁴⁵⁾, Keiichi Takahashi²⁾, Shinji Tanaka⁴⁶⁾, Osamu Tsuruta⁴⁷⁾, Toshiharu Yamaguchi⁴⁸⁾, Kenichi Sugihara⁴⁹⁾, Toshiaki Watanabe⁹⁾, Japanese Society for Cancer of the Colon and Rectum