1 Unit of Metabolic Diseases and Clinical Dietetics, "Alma Mater Studiorum" University of Bologna, Policlinico S. Orsola, Via Massarenti, 9, 40138, Bologna, Italy.
2 Division of Internal Medicine and Hepatology, II° University of Naples, Naples, Italy.
3 Division of Gastroenterology and Hepatology, University of Turin, Turin, Italy.
4 Division of Diabetology and Metabolic Diseases, S. Giovanni Battista Hospital, Turin, Italy.
5 Unit of Metabolic Diseases and Clinical Dietetics, "Alma Mater Studiorum" University of Bologna, Policlinico S. Orsola, Via Massarenti, 9, 40138, Bologna, Italy. giulio.marchesini@unibo.it.