1. Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Tübingen, Germany
2. Department of Dermatology, Eberhard Karls University Tübingen, Tübingen, Germany
3. Department of Pathology and Neuropathology, Eberhard Karls University Tübingen, Tübingen, Germany
4. Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany
5. Department of Internal Medicine VIII, University Hospital Tübingen, Tübingen, Germany
6. Department of Physiology I, Institute of Physiology, Eberhard Karls University Tübingen, Tübingen, Germany
7. Translational Gastrointestinal Oncology Group, German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
8. Department of Immunology, Eberhard Karls University, Tübingen, Germany
9. German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ) Partner Site Tübingen, Tübingen, Germany