1. Endocrinology Section, Department of Medico-Surgical Sciences and Biotechnologies (C.V., M.G.S., S.C.D.D., M.C.), 00161 Rome, Italy
2. Department of Experimental Medicine (G.B., R.I., V.M., P.G.), 00161 Rome, Italy
3. Gastroenterology Unit, Department of Internal Medicine and Medical Specialties (A.P.), “Sapienza” University of Rome, 00161 Rome, Italy
4. Endocrinology Unit (L.G., M.C.), Azienda Unità Sanitaria Locale di Latina, 04100 Latina, Italy