[1] Vall Hebron Hosp, Barcelona, Spain
[2] Inst Valenciano Oncol, Valencia, Spain
[3] Hosp Clin Valencia, Valencia, Spain
[4] Hosp 12 Octubre Madrid, Madrid, Spain
[5] Hosp Clin Barcelona, Barcelona, Spain
[6] Univ Zaragoza, Hosp Clin, Zaragoza, Spain
[7] Roche Farma Sa, Madrid, Spain