1. Institute for Clinical Radiology, University Hospital Münster, Germany
2. Department of Surgery, Krankenhaus Agatharied GmbH, Hausham, Germany
3. Department for Pediatrics, Westfälische Wilhelms Universität Münster Medizinische Fakultät, Münster, Germany
4. Intervent Radiology, TU München, München, Germany
5. Department for Radiology, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany