1 Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands. p.olthof@erasmusmc.nl.
2 Department of Surgery, Amsterdam UMC, Amsterdam, The Netherlands. p.olthof@erasmusmc.nl.
3 Department of Surgery, Maastricht University Medical Center, Maastricht, and The Netherlands NUTRIM, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.
4 Department of General, Visceral and Transplantation Surgery, Universitats Klinikum Essen, Essen, Germany.
5 Department of Surgery, Erasmus Medical Center, Rotterdam, The Netherlands.