1. Institute of Human Genetics University of Bonn Bonn Germany
2. Department of Genomics Life & Brain Center University of Bonn Bonn Germany
3. Department of Medicine II Sana Klinikum Offenbach Germany
4. Department of Internal Medicine II Evangelisches Krankenhaus Düsseldorf Germany
5. Department of Interdisciplinary Endoscopy University Hospital Hamburg‐Eppendorf Hamburg Germany
6. Department of Gastroenterology and Interdisciplinary Endoscopy Vivantes Wenckebach‐Kinikum Berlin Germany
7. Institute of Pathology Klinikum Bayreuth Bayreuth Germany
8. Statistical Genetics Max Planck Institute of Psychiatry Munich Germany
9. Department of Visceral, Transplant, Thoracic and Vascular Surgery University Hospital of Leipzig Leipzig Germany
10. Department of Internal Medicine II HSK Hospital Wiesbaden Germany
11. Department of Gastroenterology Hepatology and Infectious Diseases Otto‐von‐Guericke University Hospital Magdeburg Germany
12. Gastroenterologie am Burgweiher Bonn Germany
13. Magen Darm Zentrum Wiener Platz Cologne Germany
14. Gastroenterologische Schwerpunktpraxis Baumholder Germany
15. Department of General, Visceral and Transplant Surgery University Medical Center University of Mainz Mainz Germany
16. Department of General, Visceral and Thoracic Surgery University Medical Center Hamburg‐Eppendorf University of Hamburg Hamburg Germany
17. Department of General, Visceral and Cancer Surgery University of Cologne Cologne Germany
18. First Department of Internal Medicine University Medical Center University of Mainz Mainz Germany
19. Department of General and Visceral Surgery Sana Klinikum Offenbach Germany
20. Department of General, Visceral and Transplantation Surgery University of Heidelberg Heidelberg Germany
21. Department of General, Visceral and Thorax Surgery RoMed Klinikum Rosenheim Rosenheim Germany
22. Cancer Control QIMR Berghofer Medical Research Institute Brisbane Australia
23. Department of Epidemiology University of Washington School of Public Health Seattle Washington
24. Division of Public Health Sciences Fred Hutchinson Cancer Research Center Seattle Washington
25. Gastropraxis Wiesbaden Germany
26. Department of Internal Medicine and Gastroenterology Elisabeth Hospital Essen Germany
27. Department of Gastroenterology and Interventional Endoscopy St. John of God Hospital Regensburg Germany
28. Gastroenterologische Gemeinschaftspraxis Koblenz Germany