1. The Institute of Molecular Bioimaging and Physiology - National Research Council of Italy, Cefalu, Italy
2. Section of Hematology, Department of Surgery and Medical Specialties, University of Catania, Catania, Italy
3. Department of Nuclear Medicine, Cannizzaro Hospital, Catania, Italy
4. Department of Nuclear Medicine, IRCSS San Raffaele Scientific Institute, Milan, Italy
5. Dipartimento di Scienze Economiche, Aziendali e Statistiche (DSEAS), University of Palermo, Palermo, Italy
6. Department of Medical Physics, Cannizzaro Hospital, Catania, Italy