1. Department of Medicine, Diagnostic and Interventional Endoscopy of the Pancreas, The Pancreas Institute, University Hospital of Verona, Verona, Italy
2. Department Medical and Surgical Sciences, University of Foggia, Foggia, Italy
3. Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
4. Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy