Affiliation: | (1) Department of Visceral and Transplantation Surgery, University of Berne, Berne, Switzerland;(2) Department of General, Visceral, Vascular and Thoracic Surgery, Hospital of Liestal, Liestal, Switzerland;(3) Institute of Pathology, University of Berne, Berne, Switzerland;(4) Department of General Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany |