[1] UCL, London, England
[2] START Madrid, Ctr Integral Oncol Clara Campal, Madrid, Spain
[3] Ramon & Cajal Univ Hosp, Dept Med Oncol, Madrid, Spain
[4] MD Anderson Canc Ctr Madrid, Madrid, Spain
[5] Fdn Jimenez Diaz, E-28040 Madrid, Spain
[6] PharmaMar SAU, Madrid, Spain
[7] Hosp Madrid, Norte Sanchinarro, Spain
[8] Hosp Univ Ramon & Cajal, Madrid, Spain