[1] Metropolitan Komagome Hosp, Tokyo, Japan
[2] Tohoku Univ, Sendai, Miyagi, Japan
[3] Kyoto Prefectural Univ Med, Kyoto, Japan
[4] Yokohama City Univ, Med Ctr, Yokohama, Kanagawa, Japan
[5] Aichi Canc Ctr, Nagoya, Aichi, Japan
[6] Natl Canc Ctr, Tokyo, Japan
[7] Hyogo Med Univ, Kobe, Hyogo, Japan
[8] Tokai Univ, Hiratsuka, Kanagawa, Japan
[9] Bristol Myers Squibb, Tokyo, Japan
[10] Aichi Shukutoku Univ, Nagakute, Aichi, Japan