1. Division of Endocrinology, Diabetes and Metabolism, Department of Medicine; University Hospital of Verona; Verona Italy
2. Extracorporeal Therapeutic Techniques Unit, Lipid Clinic and Atherosclerosis Prevention Centre, Immunohematology and Transfusion Medicine, Department of Molecular Medicine; ‘‘Sapienza’’ University of Rome, ‘‘Umberto I’’ Hospital; Rome Italy
3. Section of Nephrology, Department of Medicine; University Hospital of Verona; Verona Italy