1. Division of Endocrinology and Metabolic Diseases, Department of Advanced Medical and Surgical SciencesUniversity of Campania “L. Vanvitelli” Naples Italy
2. Diabetes DivisionSt Josef Hospital, Ruhr‐University Bochum Bochum Germany
3. Diabetes Division, Department of Advanced Medical and Surgical SciencesUniversity of Campania “L. Vanvitelli” Naples Italy