1. Surgical Research Laboratory and Section of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
2. Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
3. Department of Internal Medicine, Tergooi Hospital, Hilversum, The Netherlands
4. University Medical Center Groningen, University of Groningen, Groningen, The Netherlands