| Affiliation: | 1. Department of Surgery, Gødstrup Hospital, Herning, Denmark;2. St Mark's Hospital, Northwick Park, Harrow, UK;3. Department of Surgery, Aarhus University Hospital, Aarhus, Denmark;4. Department of Clinical Medicine, Danish Center for Clinical Health Services Research, Aalborg University, Aalborg, Denmark;5. Colorectal Surgery Unit, Hospital Universitario Marques de Valdecilla and Valdecilla Biomedical Research Institute, IDIVAL, Santander, Spain;6. Klinik fur Allgemein-und Viszeralchirurgie, Kliniken Boblingen, Germany;7. Haraldsplass Diakonale Sykehus, Bergen, Norway;8. Norfolk & Norwich University Hospital, Norwich, UK;9. Queen's Medical Centre, Nottingham University Hospitals, Nottingham, UK |
