1. Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
2. Section of Molecular Immunology und Gastroenterology, I. Department of Medicine, University Medical Center Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
3. Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
4. Institute of Pathology, University Medical Center Mainz, D‑55131 Mainz, Germany
5. Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, D‑69120 Heidelberg, Germany
6. The Institute of Biochemistry, Food Science and Nutrition, The Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 76665 Rehovot, Israel
7. Department of Surgery, University Medical Center Mainz, D‑55131 Mainz, Germany