1. Department of Surgery, School of Nutrition and Translational Research in Metabolism (NUTRIM) Maastricht University Maastricht The Netherlands
2. Department of Clinical Epidemiology and Medical Technology Assessment, Care and Public Health Research Institute (CAPHRI) Maastricht University Medical Centre Maastricht The Netherlands
3. Il Surgery Unit Regional Hospital Treviso, AULSS2 Treviso Italy
4. Department of Surgery, Oncology and Gastroenterology – DISCOG University of Padua Padua Italy
5. Unit of General Surgery and Surgical Oncology, Department of Medicine, Surgery and Neurosciences University of Siena Siena Italy
6. Department of Surgery Proctos Kliniek Bilthoven The Netherlands
7. Department of Surgery Amsterdam UMC Location University of Amsterdam Amsterdam The Netherlands
8. Department of Surgery Maastricht University Medical Centre Maastricht The Netherlands
9. Department of Surgery, School for Oncology and Reproduction (GROW) Maastricht University Maastricht The Netherlands