1. Endocrinology Section, Department of Clinical and Experimental Medicine, Garibaldi Nesima Hospital, University of Catania, Catania, Italy
2. School of Human and Social Sciences, “Kore” University of Enna, Enna, Italy
3. Unit of Nuclear Medicine, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
4. Unit of Endocrinology, University Hospital of Messina, Messina, Italy
5. Department of Human Pathology DETEV, University of Messina, Messina, Italy
6. Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy