1. Department of Internal Medicine 5, Hematology and Oncology, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
2. Clinic and Polyclinic for Internal Medicine III: Hematology and Oncology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
3. Practice for Oncology and Hematology, Fürth, Germany