1. Department of General, Visceral and Transplant Surgery – University Medical Center of the Johannes Gutenberg‐University Mainz Mainz Germany
2. Department of Surgery Universitätsmedizin Mannheim Medical Faculty Mannheim Heidelberg University Mannheim Germany
3. Department of Surgery Charité‐Universitätsmedizin Berlin Berlin Germany
4. Department of Surgery University Hospital Düsseldorf Düsseldorf Germany
5. Department of General and Visceral Surgery Medical Center University of Freiburg Freiburg Germany
6. Department of General, Visceral, and Pediatric Surgery University Medical Center Goettingen Goettingen Germany
7. Division of Hepatopancreatobiliary (HPB) Surgery Department of Surgery Asklepios Hospital Barmbek Semmelweis University Hamburg Germany
8. Department of General, Visceral and Transplant Surgery Medizinische Hochschule Hannover Hannover Germany
9. Department of General, Visceral, and Transplantation Surgery University of Heidelberg Heidelberg Germany
10. Clinic for General, Visceral and Vascular Surgery Jena University Hospital Jena Germany
11. Department for General, Visceral‐, Thoracic‐, Transplantation‐, and Pediatric Surgery University Hospital Schleswig Holstein Kiel Germany
12. Department of Surgery University Medical Center Schleswig‐Holstein Luebeck Germany
13. Department of Surgery Klinikum rechts der Isar Technische Universität München Munich Germany
14. Department of General, Visceral and Transplantation Surgery Universitätsklinikum Münster Münster Germany
15. Department of Surgery Regensburg University Medical Center Regensburg Germany
16. Department of General and Visceral Surgery Ulm University Hospital Ulm Germany
17. Department of General and Visceral Surgery University Hospital Frankfurt Goethe‐University Frankfurt Frankfurt/Main Germany