1. Department of Clinical Radiology, Diagnostic Imaging Center, Kuopio University Hospital , Kuopio , Finland
2. Clinical Radiology, Institute of Clinical Medicine, School of Medicine, University of Eastern Finland , Kuopio , Finland
3. Department of Gynecology and Obstetrics, Essen University Hospital , Essen , Germany
4. Department of Plastic Surgery, Division of Surgery, Kuopio University Hospital , Kuopio , Finland
5. Department of Clinical pathology, Diagnostic Imaging Center, Kuopio University Hospital , Kuopio , Finland