[1] Hosp Gregorio Maranon, Madrid, Spain
[2] Catalan Inst Oncol ICO Badalona, Germans Trias & Pujol Res Inst IGTP, Dept Med Oncol, Badalona, Spain
[3] Badalona Appl Res Grp Oncol B ARGO, Germans Trias & Pujol Res Inst IGTP, Badalona, Spain
[4] Hosp Univ Nuestra Senora Candelaria, Santa Cruz De Tenerife, Spain
[5] Hosp San Pedro Alcantara, Caceres, Spain
[6] Hosp Arnau Vilanova, Lleida, Spain
[7] Hosp Univ Cent Asturias, Oviedo, Spain
[8] Hosp Clin San Carlos, Madrid, Spain
[9] Hosp Arnau Vilanova, Valencia, Spain
[10] Hosp Univ Reina Sofia, Cordoba, Spain
[11] Hosp Lluis Alcanyis Xativa, Valencia, Spain
[12] Hosp Infanta Sofia, Madrid, Spain
[13] Consorci Hosp Prov Castello, Castellon De La Plana, Spain
[14] Hosp Univ Marques Valdecilla, Santander, Spain
[15] Hosp Gen Alicante, Alicante, Spain
[16] Hosp Univ Sant Joan Reus, Reus, Spain
[17] Hosp Univ Mutua Terrassa, Terrassa, Spain
[18] Roche Farma SA, Madrid, Spain
[19] Hosp Univ Virgen Victoria, Malaga, Spain