1. Department of Hematology and Oncology; University Hospital of Regensburg; University of Regensburg; Regensburg Germany
2. Department of Medical Laboratory Sciences; Faculty of Allied Health Sciences; The Hashemite University; Zarqa Jordan
3. Department of Internal Medicine 5 - Hematology and Oncology; University Hospital of Erlangen; University of Erlangen-Nuernberg; Erlangen Germany