[1] GEICO, Barcelona, Spain
[2] Hosp Santa Creu & Sant Pau, Dept Med Oncol, Barcelona, Spain
[3] Hosp Donostia, San Sebastian, Spain
[4] Inst Valenciano Oncol, Area Clin Oncol Ginecol, Valencia, Spain
[5] Hosp Univ La Paz, Madrid, Spain
[6] Hosp Univ Virgen del Rocio, Seville, Spain
[7] Hosp Univ & Politecn La Fe, Valencia, Spain
[8] Vail dHebron Hosp, Barcelona, Spain
[9] Complejo Hosp Navarra, Pamplona, Spain
[10] GEICO, Mallorca, Spain
[11] Son Llatzer Univ Hosp, Mallorca, Spain
[12] Hostal Germans Trias & Pujol, Inst Catala Oncol, Med Oncol Serv, Badalona, Spain
[13] Hosp Gen Univ Valencia, Valencia, Spain
[14] Hosp Gen Univ Morales Meseguer, Med Oncol, Murcia, Spain
[15] Hosp Univ Virgen de la Arrixaca, Murcia, Spain
[16] Hosp Miguel Servet, Zaragoza, Spain
[17] Hosp Gen Univ Elche, Elche, Spain
[18] Hosp Marques de Valdecilla, Santander, Spain
[19] Hosp Univ Fdn Alcorcon, Alcorcon, Spain
[20] Hosp Prov Castellon, Castellon de La Plana, Spain