1. Department of Internal Medicine, “Santa Maria della Misericordia” Hospital, 45100 Rovigo, Italy
2. Department of Neuroscience, “Santa Maria della Misericordia” Hospital, 45100 Rovigo, Italy
3. Department of Nuclear Medicine, “Santa Maria della Misericordia” Hospital, 45100 Rovigo, Italy
4. Department of Clinical and Experimental Medicine, University of Padua, 35128 Padua, Italy