[1] Fdn IRCCS Ist Nazl Tumori, Dept Med Oncol, I-20133 Milan, Italy
[2] Univ Tsukuba, Tsukuba, Ibaraki, Japan
[3] Natl Canc Ctr, Hosp East, Chiba, Japan
[4] Univ Ulsan, Coll Med, Asan Med Ctr, Seoul, South Korea
[5] Yale Univ, New Haven, CT USA
[6] Erasmus MC, Inst Canc, Rotterdam, Netherlands
[7] Univ Calif Los Angeles, Los Angeles, CA USA
[8] Eli Lilly & Co, Indianapolis, IN 46285 USA
[9] Barts Canc Inst, London, England