1. Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41122 Modena, Italy
2. Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41122 Modena, Italy
3. Unit of Andrology and Sexual Medicine of the Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41122 Modena, Italy
4. Willis Towers Watson, Willis Holdings plc, London EC3M 7DQ, UK
5. Department of Laboratory Medicine and Pathology, Azienda USL of Modena, 41122 Modena, Italy