1 Department of Gastroenterology and Hepatology, Erasmus University Medical Centre, Rotterdam, The Netherlands.
2 Department of Surgery, Dentistry, Paediatrics and Gynaecology, Unit of General and Pancreatic Surgery, The Pancreas Institute Verona, University of Verona, Verona, Italy.
3 Department of Gastroenterology and Hepatology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.