[1] Univ Calif Los Angeles, Sch Med, Los Angeles, CA 90025 USA
[2] Natl Canc Ctr Hosp East, Kashiwa, Chiba, Japan
[3] Univ Hosp Gasthuisberg, Leuven, Belgium
[4] Katholieke Univ Leuven, Leuven, Belgium
[5] Maria Sklodowska Curie Mem Canc Ctr, Warsaw, Poland
[6] Inst Oncol, Warsaw, Poland
[7] Seoul Natl Univ, Bundang Hosp, Coll Med, Seongnam, South Korea
[8] Latvian Oncol Ctr Rakus Gailezers, Riga, Latvia
[9] Pontificia Univ Catolica Chile, Santiago, Chile
[10] Yonsei Univ, Coll Med, Yonsei Canc Ctr, Seoul, South Korea
[11] Samsung Med Ctr, Seoul, South Korea
[12] Los Angeles Med Grp, Guatemala City, Guatemala
[13] Christie Hosp NHS Trust, Manchester, Lancs, England
[14] Univ Sao Paolo, Inst Canc Sao Paolo, Sao Paulo, Brazil
[15] SPb SBHI Clin Oncol Dispensary, St Petersburg, Russia
[16] Hematol Oncol Practice Eppendorf, Hamburg, Germany
[17] Univ Canc Ctr Hamburg, Hamburg, Germany
[18] Gen Hosp, Kobe City Med Ctr, Kobe, Hyogo, Japan
[19] City Hope Comprehens Canc Ctr, Duarte, CA USA
[20] Merck & Co Inc, Kenilworth, NJ USA
[21] Hebron Univ Hosp HUVH, Barcelona, Spain
[22] UVic UCC, IOB Quiron, Inst Oncol VHIO, Barcelona, Spain