1 Department of Surgery, Amsterdam UMC, University of Amsterdam, Cancer Centre Amsterdam, Amsterdam, the Netherlands.
2 Department of Surgery, Poliambulanza Hospital Brescia, Brescia, Italy.
3 Department of General and Pancreatic Surgery, Pancreas Institute, University of Verona Hospital Trust, Verona, Italy.
4 Department of Surgery, Regional Academic Cancer Centre Utrecht, University Medical Centre Utrecht, and St Antonius Ziekenhuis Nieuwegein, Utrecht, the Netherlands.
5 Department of Surgery, Erasmus MC, Rotterdam, the Netherlands.