[1] Vall Hebron Inst Oncol VHIO, Vall Hebron Univ Hosp, Med Oncol Dept, Barcelona, Spain
[2] Inst Catala Oncol ICO IDIBELL, Med Oncol Dept, Lhospitalet De Llobregat, Spain
[3] Hosp Univ Marques Valdecilla, Med Oncol, Santander, Spain
[4] Hosp Univ 12 Octubre, Med Oncol Dept, Madrid, Spain
[5] Inst Biomed Sevilla IBIS, Hosp Virgen del Rocio, Med Oncol, Seville, Spain
[6] Hosp Univ La Paz, Med Oncol Dept, Madrid, Spain
[7] Hosp Univ HM Sanchinarro, Ctr Integral Oncol Clara Campal HM CIOCC, Madrid, Spain
[8] Hosp Univ Miguel Servet, Inst Aragones Invest Sanitaria, Zaragoza, Spain
[9] Hosp Univ Ramon & Cajal, Med Oncol, Madrid, Spain
[10] Hosp Univ Morales Meseguer, Serv Hematol & Oncol Med, Murcia, Spain
[11] Hosp Univ Burgos, Med Oncol, Burgos, Spain
[12] Hosp Gen Univ Gregorio Maranon, Dept Oncol, Madrid, Spain
[13] Hosp Univ Cent Asturias, Med Oncol, Oviedo, Spain
[14] Complejo Hosp Navarra, Dept Oncol, Pamplona, Spain
[15] Hosp Univ Donostia, Serv Oncol Med, Donostia San Sebastian, Spain
[16] Hosp Univ Virgen de la Victoria, Serv Oncol, Malaga, Spain
[17] Hosp Univ Canarias, Med Oncol, San Cristobal Laguna, Spain
[18] Hosp Univ & Politecn La Fe, Serv Oncol Med, Valencia, Spain
[19] Hosp Badalona Germans Trias & Pujol, Med Oncol, Badalona, Spain