1 Department of Clinical and Experimental Medicine, Endocrinology Unit, University of Messina, AOU Policlinico "G. Martino" (Block H, floor 4), Via Consolare Valeria, 1, Messina, 98125, Italy. curto.loren@libero.it.
2 Department of Clinical and Experimental Medicine, Cardiology Unit, University of Messina, Messina, Italy.