1 Department of Experimental and Clinical Medicine, and Neuroscience Research Centre, PET/RM Unit, "Magna Graecia" University of Catanzaro, Catanzaro, Italy.
2 Nuclear Medicine Unit, University Hospital "Mater Domini", Catanzaro, Italy.
3 Radiation Oncology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, Siena, Italy.