[1] Hosp Univ Navarra, Pamplona, Navarra, Spain
[2] Inst Invest Navarra IdiSNA, Pamplona, Navarra, Spain
[3] Hosp Univ Ramon y Cajal, Madrid, Spain
[4] Hosp Univ Puerta Hierro, Madrid, Spain
[5] Hosp Terrassa Consorci Sanitari Terrassa, Terrassa, Cataluna, Spain
[6] Hosp Gen Univ Toledo, Toledo, Spain
[7] Hosp Univ Virgen Victoria, Malaga, Spain
[8] Univ Granada, Granada, Spain
[9] Univ Calif Los Angeles, Los Angeles, CA USA
[10] UCLA, Dept Radiat Oncol, Los Angeles, CA USA
[11] Hop Fribourgeois HFR Freiburger Spital HFR, Fribourg, Switzerland
[12] HUG Hop Univ Geneve, Geneva, Switzerland
[13] Peter Maallum Canc Ctr, Melbourne, Australia
[14] Univ Melbourne, Melbourne, Australia
[15] Genesis Care, La Milagrosa Hosp, San Francisco de Asis Hosp, Natl Chair Res & Clin Trials, Madrid, Spain