1. Department of Clinical and Experimental Medicine, University of Pisa, Pisa,Italy
2. Endocrinology Unit, Fondazione IRCCS Ca’ Grande Ospedale Maggiore Policlinico, Milan,Italy
3. Department of Clinical Sciences and Community Health, University of Milan, Milan,Italy
4. Department of Information Engineering, University of Pisa, Pisa,Italy
5. University Hospital of Pisa, Endocrine Unit 2, Pisa,Italy