1. 1Endocrine Unit, Department of Medicine (DIMED)
2. 2Unit of Biostatistic, Epidemiology and Public Health, Department of Cardiac, Thoracic and Vascular Sciences, University of Padova, Padova, Italy
3. 3Unit of Internal Medicine, Ospedale dell’Angelo, Mestre-Venezia, Italy
4. 4Unit of Laboratory Medicine, Department of Medicine (DIMED), University of Padua, Padua, Italy
5. 5FIRS Laboratories, RSR Ltd, Parc Ty Glas, Llanishen, Cardiff, UK
6. 6Endocrine Unit, Department of Medical Sciences, University of Cagliari, Cagliari, Italy