1 Starzl Unit of Abdominal Transplantation, Department of Abdominal and Transplantation Surgery, University Hospitals St Luc, Université Catholique de Louvain, 10 Avenue Hippocrate, 1200, Brussels, Belgium. jan.lerut@uclouvain.be.
2 Department of Transplantation Surgery, Oslo University Hospital, and Institute for Clinical Medicine, University of Oslo, Oslo, Norway.