1Neurooncology Unit, Hospital Universitario, 12 de Octubre, Madrid, Spain
2Medical Oncology Department, Hospital Universitari I Politècnic la Fe, Valencia, Spain
3Neurosurgery Department, HRU Carlos Haya, Málaga, Spain
4Medical Oncology Department, Hospital Universitari Son Espases, Palma de Mallorca, Spain
5Neuropathology Department, Hospital Universitario, 12 de Octubre, Madrid, Spain
6Radiation Oncology Department, Hospital Universitario, 12 de Octubre, Madrid, Spain
7Medical Oncology Department, C.H.U. Insular-Materno Infantil de Gran Canaria, Las Palmas, Spain
8Neuroradiology Unit, HRU Carlos Haya, Málaga, Spain
9Medical Oncology Department, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain