1. Neurological DepartmentSaint Andrew's General Hospital of Patras Patras Greece
2. Department of Medicine, Division of Oncology, Medical SchoolUniversity of Patras Patras Greece
3. Department of Oncology, Garry Weston CentreHammersmith Hospital, Imperial NHS Healthcare Trust London UK
4. Department of Medicine‐Oncology UnitSaint Andrew's General Hospital of Patras Patras Greece
5. AP‐HP, Hôpitaux Universitaires La Pitié Salpêtrière ‐ Charles FoixService de Neurologie Mazarin Paris France
6. Neuro‐Oncology Unit, Department of NeurologyHospital Universitari de Bellvitge‐ICO L'Hospitalet, IDIBELL Barcelona Spain