1. Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
2. Unit for Bone Metabolism Diseases and Diabetes & Lab of Endocrine and Metabolic Research, Istituto Auxologico Italiano, IRCCS, Milan, Italy
3. Endocrinology and Diabetology Units, Department of Medical Sciences and Community, Fondazione Ca’Granda Ospedale Maggiore Policlinico IRCCS, Milan, Italy
4. EndOsMet Villa Donatello Private Hospital, Florence, Italy