[1] Fdn Hosp Madrid, Madrid, Spain
[2] Spanish Camcer Res Ctr, Madrid, Spain
[3] Complejo Hosp Navarra, Pamplona, Spain
[4] Hosp 12 Octubre, Madrid, Spain
[5] Hosp Univ Cent Asturias, Oviedo, Spain
[6] Fdn Inst Valenciano Oncol, Valencia, Spain
[7] Hosp Univ Clin San Carlos, Madrid, Spain
[8] Hosp Univ HM Sanchinarro, Madrid, Spain
[9] Hosp Univ Ramon y Cajal, Madrid, Spain
[10] Son Espases Univ Hosp, Palma De Mallorca, Spain
[11] Hosp Gen Univ Gregorio Maranon, Madrid, Spain
[12] Spanish Natl Canc Res Ctr, Madrid, Spain
[13] Hosp Univ Fdn Alcorcon, Alcorcon, Spain
[14] Hosp Althaia, Manresa, Spain
[15] Hosp Univ Fuenlabrada, Fuenlabrada, Spain
[16] Clara Campal Comprehens Canc Ctr CIOCC, Madrid, Spain
[17] Hosp Univ Virgen de la Victoria & Reg Malaga, CNIO IBIMA Genitourinary Canc Res Unit, CRIS Canc Fdn Prostate Canc Res Grp, Inst Biomed Res Malaga, Malaga, Spain
[18] Univ Autonoma Barcelona, Parc Tauli Sabadell Hosp Univ, Inst Invest Innovacio Parc Tauli, Dept Oncol, Sabadell, Spain
[19] Hosp Puerta Sur, Mostoles, Spain
[20] Spanish Natl Canc Res Ctr CNIO, Madrid, Spain