1. Departement of Internal Medicine and Gastroenterology (IMuG), Hepatology, Endocrinology, Rheumatology and Nephrology and Emergency Medicine (ZAE) with Centralized Endoscopy Service, Klinikum Klagenfurt am Wörthersee, Klagenfurt, Austria
2. Departement of Internal Medicine 2, Gastroenterology and Hepatology and Rheumatology, University Hospital St. Pölten, Karl Landsteiner University of Health Sciences, St. Pölten, Austria