1. Department of Internal Medicine, Endocrinology Unit, University of Modena and Reggio Emilia, Modena, Italy.
2. Department of Morphological and Forensic Sciences, Section of Pathology, University of Modena and Reggio Emilia, Modena, Italy.
3. Chair of Endocrinology, University of Ferrara, Ferrara, Italy.
4. Institute of Endocrinology, University of Milan, Milan, Italy.