[1] START Midwest, Grand Rapids, MI USA
[2] Angeles Clin & Res Inst, Los Angeles, CA USA
[3] Vall dHebron Univ Hosp, Barcelona, Spain
[4] Inst Oncol, Barcelona, Spain
[5] Inst Oncol VHIO, Barcelona, Spain
[6] Ramon & Cajal Univ Hosp, Madrid, Spain
[7] Univ Texas MD Anderson Canc Ctr, Madrid, Spain
[8] Univ Michigan, Ann Arbor, MI 48109 USA
[9] START Madrid CIOCC, Madrid, Spain
[10] Inst Catala Oncol IDIBELL, Barcelona, Spain
[11] Hosp Fdn Jimenez Diaz, START Madrid, Madrid, Spain
[12] H Lee Moffitt Canc Ctr & Res Inst, Tampa, FL USA
[13] Regeneron Pharmaceut Inc, Tarrytown, NY USA