1 Department of General, Visceral and Vascular Surgery, Ev. Krankenhaus Paul Gerhardt Stift, Lutherstadt Wittenberg, Germany; Department of Surgery, University Hospital Charité, Berlin, Germany. Electronic address: [email protected].
2 Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Würzburg, Würzburg, Germany.
3 Department of General, Visceral, Pediatric and Transplant Surgery, University Hospital Aachen, Germany.
4 Department of Visceral, Transplant, Thoracic and Vascular Surgery, Leipzig University Medical Center, Leipzig, Germany.