[1] Hosp Univ Virgen Macarena, Dept Med Oncol, Seville, Spain
[2] Hosp Reg Univ Malaga, Dept Med Oncol, Malaga, Spain
[3] Hosp Univ Torrejon, Dept Med Oncol, Torrejon De Ardoz, Spain
[4] Hosp Gran Canaria Doctor Negrin, Radiat Oncol, Las Palmas Gran Canaria, Spain
[5] Hosp Clin San Cecilio, Dept Med Oncol, Granada, Spain
[6] Hosp Son Llatzer, Dept Med Oncol, Palma De Mallorca, Spain
[7] Cosaga Ourense, Dept Med Oncol, Orense, Spain
[8] Inst Catala Oncol LHospitalet, Palliat Care Dept, Lhospitalet De Llobregat, Spain
[9] Ctr Oncol Galicia COG, Dept Med Oncol, La Coruna, Spain
[10] Hosp Univ Infanta Cristina, Dept Med Oncol, Badajoz, Spain
[11] Hosp Univ Vall dHebron, Radiat Oncol, Barcelona, Spain
[12] Consorci Sanitari Tarrasa, Palliat Care Dept, Terrassa, Spain
[13] Hosp Univ Donostia, Dept Med Oncol, San Sebastian, Spain
[14] Hosp Reina Sofia, Dept Med Oncol, Cordoba, Spain
[15] Hosp Univ La Paz, Dept Med Oncol, Madrid, Spain
[16] Hosp Univ Fdn Alcorcon, Dept Med Oncol, Alcorcon, Spain
[17] Kyowa Kirin Farmaceut SLU, Dept Med, Madrid, Spain
[18] E C Bio SL, Dept Med, Las Rozas, Spain