1. Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, Nuclear Medicine Unit, University of Messina, Messina, Italy
2. Nuclear Medicine and PET/CT Centre, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
3. Department of Economical, Business and Environmental Sciences and Quantitative Methods, University of Messina, Messina, Italy
4. Department of Clinical and Experimental Medicine, Unit of Endocrinology, University of Messina, Messina, Italy
5. Accademia Peloritana dei Pericolanti, University of Messina, Messina, Italy