[1] Hosp Gen Univ Gregorio Maranon, Madrid, Spain
[2] Inst Invest Sanitaria Gregorio Maranon, Madrid, Spain
[3] Hosp Univ Virgen Rocio, Seville, Spain
[4] Hosp Univ Cent Asturias, Oviedo, Spain
[5] Hosp Sabadell, Corp Sanitaria Parc Tauli, Sabadell, Spain
[6] Inst Ramon & Cajal Invest Sanitaria IRICYS, Hosp Univ Ramon & Cajal, CIBERONC, Madrid, Spain
[7] Hosp Univ Reg & Virgen Victoria, Malaga, Spain
[8] Vall Hebron Univ Hosp & Inst Oncol VHIO, TTD Grp, CIBERONC, Barcelona, Spain
[9] Hosp Univ San Cecilio, Granada, Spain
[10] Hosp Univ Puerta Mar, Cadiz, Spain
[11] Hosp Univ Puerta Hierro, Dept Med Oncol, Madrid, Spain
[12] Hosp Univ La Paz, Dept Med Oncol, Madrid, Spain
[13] Univ Clin Hosp, Dept Med Oncol, Madrid, Spain
[14] Univ Clin Hosp, Translat Med Oncol Grp, Madrid, Spain
[15] Univ Clin Hosp, Hlth Res Inst IDIS, Madrid, Spain
[16] Univ Santiago Compostela, Sch Med, CIBERONC, Santiago De Compostela, Spain
[17] Hosp Gen Univ Morales Meseguer, Murcia, Spain
[18] Hosp Univ Virgen Ias Nieves, Dept Med Oncol, Granada, Spain
[19] Univ Cordoba, Reina Sofia Hosp, IMIBIC, Inst Salud Carlos III,CIBERONC, Cordoba, Spain