University of Amsterdam - Amsterdam University Medical Centers, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam Gastroenterology Endocrinology & Metabolism (AGEM), Unidade Local de Saúde de Entre Douro e Vouga (ULSEDV), University of Barcelona, Ruhr University of Bochum, Ghent University, University of Amsterdam - Department of Surgery, University of Pisa - Department of Translational Research on New Technologies in Medicine and Surgery, Maastricht University, Erasmus University Rotterdam (EUR) - Department of Gastroenterology & Hepatology, University of Amsterdam - Amsterdam UMC, Trinity College (Dublin), Beaujon Hospital, Università Vita-Salute San Raffaele - IRCCS Ospedale San Raffaele, Karolinska Institutet - Karolinska University Hospital, Ghent University, Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), Liv Bona Dea Hospital, University of Hamburg - University Medical Center Hamburg-Eppendorf, University of Groningen, University of Helsinki, Beaujon Hospital, Leiden University, Humanitas University, Riga East University Hospital, Riga East University Hospital, University of Antwerp, University of Hamburg - University Medical Center Hamburg-Eppendorf, Università Vita-Salute San Raffaele - IRCCS Ospedale San Raffaele, University of Oslo - Oslo University Hospital, Ruhr University of Bochum, University of Hamburg - University Medical Center Hamburg-Eppendorf, University of Amsterdam - Amsterdam University Medical Centers, Erasmus University Rotterdam (EUR) - Department of Surgery, Leiden University, St. Antonius Hospital, St. Antonius Hospital, University of Amsterdam - Amsterdam University Medical Centers, University of Oslo - Oslo University Hospital, University of Amsterdam - Amsterdam University Medical Centers, Independent and Independent

affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Amsterdam - Amsterdam University Medical Centers and affiliation not provided to SSRN

University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam UMC, Fondazione Poliambulanza Istituto Ospedaliero, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam UMC, affiliation not provided to SSRN, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam University Medical Centers, Sint Maartenskliniek, Utrecht University - Julius Center for Health Sciences and Primary Care, affiliation not provided to SSRN, Maastricht University, University of Amsterdam - Amsterdam UMC, affiliation not provided to SSRN, Erasmus University Medical Center Rotterdam - Department of General Surgery, University of Amsterdam - Amsterdam UMC, Radboud University Nijmegen - Radboud University Medical Center, affiliation not provided to SSRN, University of Groningen, Netherlands Cancer Institute, Maxima Medical Centre, Medisch Spectrum Twente, affiliation not provided to SSRN, University Medical Center Utrecht, affiliation not provided to SSRN, affiliation not provided to SSRN, Netherlands Cancer Institute, Erasmus University Medical Center Rotterdam - Erasmus MC Cancer Institute, Radboud University Nijmegen - Radboud University Medical Center, Netherlands Cancer Institute, University of Amsterdam - University Medical Center, Utrecht University - Julius Center for Health Sciences and Primary Care, University of Amsterdam - Department of Radiology and Nuclear Medicine, University of Amsterdam - Amsterdam UMC, University of Amsterdam - Amsterdam UMC and University of Amsterdam - Cancer Center Amsterdam