1. Interdisciplinary Centre of Ultrasound Diagnostics University Hospital Giessen and Marburg, Philipps University Marburg Marburg Germany
2. Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology University Hospital Giessen and Marburg, Philipps University Marburg Marburg Germany
3. Department Allgemeine Innere Medizin (DAIM) Kliniken Hirslanden Bern, Beau Site, Salem und Permanence Bern Switzerland
4. Hematology, Oncology and Immunology University Hospital Giessen and Marburg, Philipps University Marburg Marburg Germany