1. Department of SurgeryZealand University HospitalKoegeDenmark
2. Erasmus University Medical CentreRotterdamthe Netherlands
3. TergooiHilversumthe Netherlands
4. Department of SurgeryOLVG HospitalAmsterdamthe Netherlands
5. Department of General and Hepato‐Pancreato‐Biliary SurgeryGent University HospitalGentBelgium
6. Third Department of SurgeryMotol University HospitalPragueCzech Republic
7. First and Second Faculty of MedicineCharles UniversityPragueCzech Republic
8. University of Pennsylvania Health System, Penn Presbyterian Medical CenterPhiladelphiaPennsylvaniaUSA
9. New Hanover Regional Medical CenterWilmingtonNorth CarolinaUSA
10. Department of SurgeryDalhousie UniversityHalifaxCanada
11. Praxis 3+CHIRURGENBerlinGermany
12. Department of Digestive SurgeryRobert Debré University HospitalReimsFrance
13. Henares University Hospital, Faculty of Health SciencesFrancisco de Vitoria UniversityMadridSpain
14. Department of SurgeryLund University, Skåne University HospitalMalmöSweden