1. Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
2. Department of Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
3. Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
4. Department Medical and Surgical Sciences, University of Foggia, Foggia, Italy
5. Diagnostic and Interventional Endoscopy of the Pancreas, The Pancreas Institute, University Hospital of Verona, Verona, Italy