1. Department of Gastroenterology; Hepatology and Endocrinology; Hannover Medical School; Hannover Germany
2. IFB-TX; Hannover Medical School; Hannover Germany
3. Department of Visceral Surgery; Hannover Medical School; Hannover Germany
4. Praxis Dr Birkner; Hannover Germany
5. Department of Nephrology; Hannover Medical School; Hannover Germany
6. Department of Gastroenterology; Vivantes Klinikum; Berlin Germany
7. Department of Cardiac and Thoracic Surgery; Hannover Medical School; Hannover Germany
8. Department of Respiratory Medicine; Hannover Medical School; Hannover Germany
9. Microbiology Institute; University Hospital Regensburg; Regensburg Germany