1. Department of General- and Visceral Surgery, University Hospital of Giessen and Marburg Campus Marburg, Marburg, Hessen, Germany
2. Department of Diagnostic and Interventional Radiology, University Hospital of Giessen and Marburg Campus Marburg, Marburg, Hessen, Germany
3. Department of Gastroenterology, Endocrinology, Metabolism and Infectiology, University Hospital of Giessen and Marburg Campus Marburg, Marburg, Hessen, Germany
4. Department of Pathology, University Hospital of Giessen and Marburg Campus Marburg, Marburg, Hessen, Germany