[1] Inst Canc Res, London, England
[2] Univ Calif San Diego, La Jolla, CA 92093 USA
[3] Moores Canc Ctr, La Jolla, CA USA
[4] Univ Hlth Network, Toronto, ON, Canada
[5] Peter MacCallum Canc Ctr, Melbourne, Vic, Australia
[6] Fdn IRCCS Ist Nazl Tumori, Milan, Italy
[7] Univ Milan, Milan, Italy
[8] Antwerp Univ Hosp, Edegem, Belgium
[9] Stanford Univ, Stanford, CA 94305 USA
[10] Natl Canc Ctr Hosp, Kashiwa, Chiba, Japan
[11] Clin Univ St Luc, Brussels, Belgium
[12] Eisai Inc, Woodcliff Lake, NJ USA
[13] Merck & Co Inc, Kenilworth, NJ USA
[14] Yale Canc Ctr, New Haven, CT USA