1. Section of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy.
2. Department of Internal Medicine and Metabolic Diseases, Nuovo Ospedale Sant'Agostino Estense di Baggiovara, Modena, Italy.
3. Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.