1. Department of Neuroradiology, A.O.U. Città della Salute e della Scienza, 10126 Turin, Italy
2. Research Center/Policlinico di Monza Foundation, 13100 Vercelli, Italy
3. Department of Neurosurgery, A.O.U. Città della Salute e della Scienza, 10126 Turin, Italy
4. Department of Medical Sciences, University of Turin, 10126 Turin, Italy
5. Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy
6. Positron Emission Tomography Center IRMET S.p.A, Euromedic Inc., 10136 Turin, Italy
7. Institute of Cognitive Sciences and Technologies, National Research Council, 00185 Rome, Italy