1. Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, Heidelberg, Germany
2. Department of Surgery, University of Heidelberg, Heidelberg, Germany
3. Institute of Physiology and Pathophysiology, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
4. Department of Neuroradiology, University of Heidelberg, Heidelberg, Germany
5. Department of Pediatric Oncology, Hematology, Immunology and Pulmonology, University of Heidelberg, Heidelberg, Germany