[1] Canc Inst Hosp, Tokyo, Japan
[2] Osaka Med Ctr Canc & Cardiovasc, Osaka, Japan
[3] Sakai Municipal Hosp, Osaka, Japan
[4] Kanagawa Canc Ctr, Yokohama, Kanagawa, Japan
[5] Kinki Univ, Sch Med, Osaka, Japan
[6] Natl Kyushu Canc Ctr, Fukuoka, Fukuoka, Japan
[7] Hamanomachi Hosp, Fukuoka, Fukuoka, Japan
[8] Osaka Gen Med Ctr, Osaka, Japan