1. Department of General, Visceral and Transplantation Surgery; University Hospital Essen; Essen; Germany
2. Department of Surgery; University Medical Center Groningen; University of Groningen; Groningen; The Netherlands
3. Eurotransplant International Foundation; Leiden; The Netherlands
4. Department of Abdominal Transplant Surgery - Transplant Coordination; University Hospital Leuven; Leuven; Belgium
5. Oxford Transplant Centre; John Radcliffe Hospital; Oxford; UK