1. Diagnostic, Interventional, and Pediatric Radiology, INSELSPITAL – Bern University Hospital, Bern
2. Department of Radiology, Neuroradiology, Sonography and Nuclearmedicine, Merciful Brethren Hospital, Trier
3. Diagnostic and Interventional Radiology, University Medical Center Hamburg Eppendorf, Hamburg
4. Department of Hepatobiliary Surgery und Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg