1. Clinic for Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
2. Internal Medicine I, Central Hospital Bremerhaven, Postbrookstraße103, Bremerhaven, Germany
3. Epidemiology, IQVIA, Unterschweinstiege2-14, Frankfurt, Germany
4. KGP Bremerhaven, Postbrookstr. 105, 27574 Bremerhaven, Germany