| Affiliation: | 1. The Department of Radiology, Academic Medical Center, University of Amsterdam, , Amsterdam;2. The Department of Surgery, Academic Medical Center, University of Amsterdam, , Amsterdam;3. The Department of Surgery, Kennemer Gasthuis, , Haarlem;4. The Department of Surgery, Gelre Hospitals, , Apeldoorn;5. The Department of Surgery, Alkmaar Medical Centre, , Alkmaar;6. The Emergency Department, Sint Antonius Hospital, , Nieuwegein;7. The Department of Surgery, Sint Lucas Andreas Hospital, , Amsterdam;8. The Department of Radiology, Haaglanden Medical Center, , Leidschendam, the Netherlands;9. The Department of Clinical Epidemiology, Academic Medical Center, University of Amsterdam, , Amsterdam |
