1. Division of Neurosurgery, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, Spedali Civili of Brescia, University of Brescia, 25123 Brescia, Italy
2. Department of Neurosurgery, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
3. Pathology Unit, Spedali Civili of Brescia, University of Brescia, 25123 Brescia, Italy
4. Neurosurgery Division, Department of Neuroscience, “Sapienza” University of Rome, 00185 Rome, Italy
5. Neurosurgery, School of Medicine, Università Cattolica del Sacro Cuore, 00168 Rome, Italy