1. Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
2. Unit of Surgery, Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
3. Unit of Pathology, Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy