1. Department of Biomedical and Neuromotor Sciences, University of Bologna, Unit of Anatomic Pathology, Bellaria Hospital, Bologna, Italy
2. Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
3. IRCCS/Institute of Neurological Science of Bologna, Unit of Neuradiology, Bellaria Hospital, Bologna, Italy
4. IRCCS/Institute of Neurological Science of Bologna, Department of Neurologic Surgery, Bellaria Hospital, Bologna, Italy