1. Medical Oncology Department. Ramón y Cajal Hospital. IRYCIS, CIBERONC, Madrid, 28034, Spain
2. Neurosurgery Department. Ramón y Cajal Hospital, Madrid, 28034, Spain
3. Medical Oncology Department. 12 de Octubre Hospital. Instituto de Investigación I+12, Madrid, 28041, Spain
4. Neurosurgery Department. 12 de Octubre Hospital, Madrid, 28034, Spain
5. Radiology Department. Ramón y Cajal Hospital, Madrid, 28034, Spain
6. Pathology Department, Ramón y Cajal Hospital, Madrid, 28034, Spain
7. Clinical Biostatistic Unit, Hospital Universitario Ramón y Cajal, IRYCIS, CIBERESP, Nursing Department Universidad de Alcalá Madrid, 28034, Spain
8. Department of Surgery, Oncology & Gastroenterology, University of Padova, Padua, 35124, Italy
9. Veneto Institute of Oncology IOV – IRCCS, Padua, 35128, Italy