1. I. Department of Internal Medicine; Johannes Gutenberg University; Mainz Germany
2. Institute of Clinical Chemistry and Laboratory Medicine; Johannes Gutenberg University; Mainz Germany
3. Department of Immunology; Department of Hematology and Van Creveld Clinic University Medical Center Utrecht; Utrecht The Netherlands
4. Department of Hematology and Oncology; Johannes Gutenberg University; Mainz Germany
5. General, Visceral and Transplant Surgery; Johannes Gutenberg-University; Mainz Germany