1. Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany;
2. Internal Medicine, Vivantes Clinic Friedrichshain, Berlin, Germany;
3. Hemostasis, Hemotherapy, and Transfusion Medicine, Heinrich Heine University Center, Düsseldorf, Germany;
4. Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany;
5. Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Evangelisches Diakonie-Krankenhaus Bremen, Bremen, Germany;
6. Hematology and Oncology, University Hospital Eppendorf, Hamburg, Germany;
7. Hemophilia Care Center, SRH Kurpfalzkrankenhaus Heidelberg, Heidelberg, Germany;
8. Institute for Clinical Chemistry and Laboratory Medicine, Freiburg University Hospital, Freiburg, Germany;
9. Clinical Hemostaseology and Transfusion Medicine, Saarland University Hospital, Homburg/Saar, Germany;
10. Center of Coagulation Disorders, Leipzig, Germany;
11. Hematology and Oncology, Jena University Hospital, Jena, Germany;
12. Hematology, Graz Medical University, Graz, Austria;
13. Hematology and Oncology, Johann Wolfgang Goethe University Hospital, Frankfurt/Main, Germany;
14. Clinical Chemistry, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany;
15. Hematology, Hemostasis, and Oncology, Paracelsus Medical University, Salzburg, Austria;
16. Hematology and Oncology, Mainz University Hospital, Mainz, Germany;
17. Internal Medicine, German Diagnostic Clinic, Wiesbaden, Germany;
18. Anesthesiology, Evangelical Hospital, Bielefeld, Germany;
19. Transfusion Medicine, Charité University Hospital, Berlin, Germany;
20. Biometry, Hannover Medical School, Hannover, Germany; and
21. Hematology and Hemostasis, Vienna Medical University, Vienna, Austria