1. Diabetes Service; Endocrinology and Metabolic Diseases Unit; IRCCS “Cà Granda-Ospedale Maggiore Policlinico” Foundation; University of Milan; Milan Italy
2. Department of Medical Sciences; University of Milan; Milan Italy
3. Department of Clinical and Molecular Medicine; “La Sapienza” University; Rome Italy
4. Diabetes Unit; Sant'Andrea Hospital; Rome Italy
5. Division of Gastroenterology and Hepatology; A.M. and A. Migliavacca Center for Liver Disease; IRCCS “Cà Granda-Ospedale Maggiore Policlinico” Foundation; University of Milan; Milan Italy