1. Department of Internal Medicine IV, Oncology/Hematology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
2. Department of Oncology and Hematology, BMT with section Pneumology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
3. Department of Neurosurgery, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
4. ENPICOM B.V., ‘s-Hertogenbosch, The Netherlands