1. Department of Physics Ettore Pancini, Università di Napoli Federico II, 80126 Naples, Italy
2. Radiology Division, ASL Avellino, 83100 Avellino, Italy
3. Nuclear Medicine Unit, Department of Precision Medicine, Università della Campania Luigi Vanvitelli, 81100 Napoli, Italy
4. Department of Precision Medicine, Università della Campania Luigi Vanvitelli, 81100 Napoli, Italy
5. Department of Human Science, Guglielmo Marconi University, 00193 Rome, Italy
6. Department of Experimental Medicine, University of Campania Luigi Vanvitelli, 80138 Napoli, Italy