[1] Maria Sklodowska Curie Natl Canc Res Inst, Dept Radiotherapy & Oncol, Warsaw, Poland
[2] Hosp Univ Salamanca IBSAL, Dept Med Oncol, Salamanca, Spain
[3] Complejo Hosp Jaen, Dept Oncol, Jaen, Spain
[4] Amgen Inc, Global Med Affairs, Thousand Oaks, CA USA
[5] Ctr Oncol & Radiotherapie, Oncol Med, Chambray Les Tours, France