1. Unit of Radiation Oncology, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
2. Unit of Neurosurgery, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
3. Neurosurgery Department, University of Strasbourg, 67000 Strasbourg, France
4. Unit of Neuroradiology, Azienda Ospedaliera Universitario Senese, 53100 Siena, Italy
5. Radiation Oncology, Policlinico Umberto I, Department of Radiological, Oncological and Pathological Sciences, “Sapienza” University of Rome, 00185 Rome, Italy
6. Department of Neuroscience, “Sapienza” University of Rome, 00185 Rome, Italy
7. IRCSS Neuromed, 86077 Pozzilli, Italy