1. University of Groningen University Medical Center Groningen Department of surgery Groningen the Netherlands
2. MR Research Center, Department of Clinical Medicine Aarhus University Aarhus Denmark
3. Department of Cardiology Aarhus University Hospital Aarhus Denmark
4. Department of Clinical Medicine Aarhus University Aarhus Denmark
5. Department of Renal Medicine Aarhus University Hospital Aarhus Denmark