1. Endocrinology (P.M., G.P., L.S., C.R., S.S., R.V.), Department of Clinical and Molecular Biomedicine, University of Catania, Garibaldi-Nesima Medical Center, 95122 Catania, Italy
2. Operative Unit of Endocrinology (M.A.), “Ospedali Riuniti Villa Sofia - Cervello” Hospital, 90146 Palermo, Italy
3. Endocrinology (M.A.V.), Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy
4. Endocrinology, Diabetology, and Metabolism (C.G.), Department of Internal and Specialistic Biomedicine, University of Palermo, 90133 Palermo, Italy