1. Department of General and Transplant Surgery; University of Heidelberg; Heidelberg; Germany
2. Institute of Medical Biometry and Informatics; University of Heidelberg; Heidelberg; Germany
3. Department of General and Visceral Surgery; Johann Wolfgang Goethe- University; Frankfurt am Main; Germany
4. Department of General and Thoracic Surgery; Christian-Albrechts-University Kiel; Kiel; Germany
5. Division of Transplantation; Department of Surgery; University of Vienna; Vienna; Austria
6. Department of General Surgery; Klinikum Rechts der Isar; Technical University of Munich; Munich; Germany
7. Department of General Surgery; Campus Grosshadern; University of Munich; Munich; Germany
8. Department of General Surgery; University of Erlangen; Erlangen; Germany
9. Department of Surgery; Erasmus Medisch Centrum-Daniel den Hoed; Rotterdam; Netherlands
10. Department of Visceral Transplant, Thoracic and Vascular Surgery; University of Leipzig; Leipzig; Germany
11. Department of General Surgery; University of Bonn; Bonn; Germany
12. Department of General, Thoracic, Vascular and Transplantation Surgery; University of Rostock; Rostock; Germany
13. Department of General, Visceral and Transplant Surgery; Klinikum der Medizinischen Hochschule; Hannover; Germany
14. Department of Liver Transplant Surgery; University Clinic Saint-Luc; Bruxelles; Belgium
15. Department of General, Visceral and Vascular Surgery; Otto-von-Guericke University; Magdeburg; Germany
16. Department of General and Visceral Surgery; University of Goettingen; Goettingen; Germany
17. Department of General, Visceral and Transplant Surgery; Eberhard-Karls University; Tuebingen; Germany
18. Department of Hepatobiliary and Transplant Surgery; University of Hamburg-Eppendorf; Hamburg; Germany
19. Department of Transplant and Hepato-biliary-pancreatic Surgery; Johannes-Gutenberg-University; Mainz; Germany
20. Department of General, Visceral and Transplant Surgery; University of Essen; Essen; Germany
21. Department of Abdominal Transplant Surgery; University of Leuven; Leuven; Belgium
22. Department of Visceral, Transplant and Thoracic Surgery; University of Innsbruck; Innsbruck; Austria
23. Department of Transplant Surgery; University of Leiden; Leiden; Netherlands
24. Department of Transplant Surgery; University of Gent; Gent; Belgium
25. Department of General, Visceral, Vascular and Pediatric Surgery; University of Saarland; Homburg/Saar; Germany
26. Department of General, Visceral and Transplantation Surgery; Charité Campus Virchow-Klinikum; University of Berlin; Berlin; Germany
27. Department of General and Visceral Surgery; University of Muenster; Muenster; Germany
28. Department of General, Visceral and Vascular Surgery; Friedrich Schiller University; Jena; Germany
29. Department of General, Visceral and Cancer Surgery; University of Cologne; Cologne; Germany
30. Department of General Surgery; University of Graz; Graz; Germany
31. Department of Hepatobiliary, Transplant and Endocrine Surgery; University Hospital of Antwerpen; Edegem; Belgium