[1] Kyushu Univ, Grad Sch Med Sci, Dept Surg & Sci, Fukuoka, Japan
[2] Natl Canc Ctr Hosp East, Kashiwa, Chiba, Japan
[3] Aichi Canc Ctr Hosp, Nagoya, Aichi, Japan
[4] Saiseikai Fukuoka Gen Hosp, Fukuoka, Japan
[5] Kagawa Univ, Takamatsu, Kagawa, Japan
[6] Osaka Minato Cent Hosp, Osaka, Japan
[7] Yokohama City Univ, Yokohama, Kanagawa, Japan
[8] Kansai Rosai Hosp, Amagasaki, Hyogo, Japan
[9] Kitano Hosp, Osaka, Japan
[10] Shizuoka Canc Ctr, Nagaizumi, Shizuoka, Japan