1. Azienda USL, Internal Medicine; Pavullo Hospital; Pavullo Italy
2. University of Modena and Reggio Emilia; Metabolic Clinic, Infectious and Tropical Disease Unit, Policlinico Hospital; Modena Italy
3. Section of Endocrinology, Diabetes and Metabolism, Department of Medicine; University of Verona and Azienda Ospedaliera Universitaria Integrata di Verona; Verona Italy
4. Azienda USL; Outpatient Liver Clinic and Internal Medicine, NOCSAE; Modena Italy
5. Department of Statistics; University of Bologna; Bologna Italy