1. Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
2. Unit of Metabolic Medicine, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
3. Department of Laboratory Medicine and Pathology, Azienda USL of Modena, Italy
4. Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria di Modena, Ospedale Civile di Baggiovara, Modena, Italy