1. Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
2. Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, Interdisciplinary Center of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
3. Klinik für Akut- und Notfallmedizin, St.-Antonius-Hospital gGmbH, Eschweiler, Deutschland, Eschweiler, Germany
4. Allgemeine Innere Medizin (DAIM) Kliniken Beau Site, Salem und Permanence, Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland