1. Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany;
2. Hematology Research Unit, Department of Clinical Chemistry and Hematology, University of Helsinki, Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Finland;
3. Department of Hematology, Oncology, and Radiation Physics, Skane University Hospital, Lund, Sweden;
4. Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany;
5. Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany;
6. Onkologische Schwerpunktpraxis, Heilbronn, Germany;
7. Department of Hematology, VU University Medical Center, Amsterdam, The Netherlands;
8. Department of Hematology, Albert Schweitzer Hospital, Dordrecht, The Netherlands;
9. Department of Hematology, Erasmus MC, Rotterdam, The Netherlands;
10. Hematology Laboratory, Haut-Lévêque Hospital, Bordeaux University Hospital, Bordeaux, France;
11. Department of Hematology, St. Olavs Hospital, Norwegian University of Science and Technology, Trondheim, Norway;
12. Department of Clinical Genetics, Skane University Hospital, Lund, Sweden; and
13. Internal Medicine III, University of Heidelberg at Mannheim, Mannheim, Germany