1. Nuclear Medicine Unit, Department of Medical-Surgical Sciences and of Translational Medicine, Faculty of Medicine and Psychology, “Sapienza” University, 00189 Rome, Italy
2. U.O.C. Diagnostic Imaging, PTV Policlinico “Tor Vergata” University, Viale Oxford 81, 00133 Rome, Italy
3. Nuclear Medicine Unit, University Hospital Sant’Andrea, 00189 Rome, Italy
4. Department of Medical and Surgical Sciences and Translational Medicine, Ph.D. School in Translational Medicine and Oncology, Faculty of Medicine and Psychology, Sapienza University of Rome, 00189 Rome, Italy