[1] Hosp Donostia, Serv Oncol Med, ES-20014 Donostia San Sebastian, Spain
[2] Hosp Univ Reina Sofia, Serv Oncol Med, Cordoba, Spain
[3] Inst Valenciano Oncol, Serv Oncol Med, Valencia, Spain
[4] Hosp Gen Valle Hebron, Serv Oncol Med, Barcelona, Spain
[5] Complejo Hosp Univ, Serv Oncol Med, La Coruna, Spain
[6] Ctr Integral Oncol Clara Campal, Serv Oncol Med, Madrid, Spain
[7] Hosp Gen Univ Elche, Serv Oncol Med, Alicante, Spain
[8] Hosp Clin Univ Lozano Blesa, Serv Oncol Med, Zaragoza, Spain