[1] Dana Farber Canc Inst, Boston, MA 02115 USA
[2] Natl Canc Ctr, Tokyo, Japan
[3] Okayama Univ Hosp, Ctr Clin Oncol, Okayama, Japan
[4] Okayama Univ Hosp, Okayama, Japan
[5] Asan Med Ctr, Seoul, South Korea
[6] Gustave Roussy, Villejuif, France
[7] Samsung Med Ctr, Seoul, South Korea
[8] Leiden Univ, Med Ctr, Leiden, Netherlands
[9] Netherlands Canc Inst, Amsterdam, Netherlands
[10] Leon Berard Ctr, Lyon, France
[11] Univ Nantes, Ctr Hosp Univ Nantes, Nantes, France
[12] Univ Turin, Dept Oncol, Azienda Osped Univ San Luigi Gonzaga, Orbassano, Italy
[13] Kindai Univ Hosp, Osaka, Japan
[14] Aichi Canc Ctr Hosp, Nagoya, Aichi, Japan
[15] Seoul Natl Univ Hosp, Seoul, South Korea
[16] Daiichi Sankyo Inc, Basking Ridge, NJ USA
[17] Natl Canc Ctr Hosp East, Kashiwa, Chiba, Japan