[1] Tohoku Univ Hosp, Sendai, Miyagi, Japan
[2] Natl Canc Ctr, Tokyo, Japan
[3] Nagoya Daini Red Cross Hosp, Nagoya, Aichi, Japan
[4] Natl Canc Ctr Hosp, Kashiwa, Chiba, Japan
[5] Aichi Canc Ctr Hosp, Nagoya, Aichi, Japan
[6] Tokai Univ Hosp, Isehara, Kanagawa, Japan
[7] Bayer Yakuhin Ltd, Osaka, Japan
[8] Nagoya Med Ctr, Nagoya, Aichi, Japan