[1] NHO Osaka Natl Hosp, Osaka, Japan
[2] Aichi Canc Ctr Hosp, Nagoya, Aichi, Japan
[3] Kyushu Canc Ctr, Fukuoka, Japan
[4] Sagara Hosp, Kagoshima, Japan
[5] Nagoya Med Ctr, Nagoya, Aichi, Japan
[6] Shikoku Canc Ctr, Matsuyama, Ehime, Japan
[7] Pfizer Japan Inc, Tokyo, Japan
[8] Saitama Med Univ, Int Med Ctr, Saitama, Japan
[9] Osaka Univ, Osaka, Japan