[1] Univ Bari Aldo Moro, Sch Med, Interdisciplinary Dept Med, Sect Internal Med Geriatr Endocrinol & Rare Dis, Piazza Giulio Cesare, Bari, Italy
[2] ASST Grande Osped Metropolitano Niguarda, Diabetol Unit, Milan, Italy
[3] Policlin Morgagni CCD, Unit Endocrinol, Catania, Italy
[4] Regina Apostolorum Hosp, Dept Endocrinol & Metab, Rome, Italy