1. Department of Radiology, Satakunta Hospital District, Pori;
2. Department of Diagnostic Radiology, University of Turku, Turku;
3. Helsinki Medical Imaging Center, Department of Radiology, Töölö Trauma Center, Helsinki University Hospital, HUS;
4. Pulssi Medical Center, Turku;
5. Department of Diagnostic Radiology, Turku University Hospital, Turku, Finland