1. Nuclear Medicine Unit, Santa Maria Goretti Hospital, via Canova, Latina, Italy
2. Department of Nuclear Medicine - PET/CT Center, S. Maria Della Misericordia Hospital, Rovigo, Italy
3. Department of Engineering, Università Degli Studi Di Perugia, Perugia, Italy
4. Section of Nuclear Medicine and Health Physics, Department of Medicine and Surgery, Università Degli Studi Di Perugia, Perugia, Italy
5. Nuclear Medicine Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
6. Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy