1 Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
2 Department of Surgery and Transplantation, University Hospital Zurich, Zurich, Switzerland.
3 Department of Abdominal Transplant Surgery, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium.
4 Department of Surgery, Division of Organ Transplantation, UMass Memorial Medical Center, University of Massachusetts, Worcester, Massachusetts, United States.