1 Department of Clinical and Experimental Medicine, University of Pisa, and Endocrine Unit 2, University Hospital of Pisa, Via Paradisa, 56124 Pisa, Italy. Electronic address: claudio.marcocci@unipi.it.
2 Endocrine Unit 2, University Hospital of PisaVia Paradisa, 56124 Pisa, Italy. Electronic address: cetani@endoc.med.unipi.it.