1Interdisciplinary Center of Ultrasound Diagnostics, University Hospital of Giessen and Marburg, Campus Marburg, Marburg, Germany
2Department of General Internal Medicine, Hirslanden Klinik Beau-Site, Bern, Switzerland
3Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital of Giessen and Marburg, Campus Marburg, Marburg, Germany
4Haematology, Oncology and Immunology, University Hospital of Giessen and Marburg, Campus Marburg, Marburg, Germany
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