1. Department of Visceral, Thoracic and Vascular Surgery University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden Dresden Germany
2. Institute of Clinical Chemistry and Laboratory Medicine University Hospital and Faculty of Medicine, Technische Universität Dresden Dresden Germany
3. National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, German Cancer Research Center (DKFZ) Heidelberg Germany
4. German Cancer Consortium (DKTK), Partner Site Dresden, Dresden, German Cancer Research Center (DKFZ) Heidelberg Germany