1 Department of Biomedical and Dental Sciences and of Morpho-functional Imaging, Nuclear Medicine Unit, University of Messina, Via Consolare Valeria n.1, Messina, ME, Italy. riclaudi@hotmail.it.
2 Department of Biomedical and Dental Sciences and of Morpho-functional Imaging, Nuclear Medicine Unit, University of Messina, Via Consolare Valeria n.1, Messina, ME, Italy.