1. Department of Haemostaseology and Haemophilia Centre Medical Clinic 2 Institute of Transfusion Medicine University Hospital Frankfurt Frankfurt Germany
2. Institute of Clinical Haemostaseology and Transfusion Medicine Saarland University and University Hospital Homburg/Saar Germany
3. Haemophilia Center II. Medical Department University Medical Center Hamburg‐Eppendorf Hamburg Germany
4. Pediatric Hematology and Oncology Charité University Medicine Berlin Berlin Germany
5. Department for Internal Medicine – Vascular medcine and Haemostaseology Haemophilia Centre Vivantes Clinic imFriedrichshain Berlin Germany
6. Department of Paediatric Haemostaseology University Hospital Carl Gustav Carus Technical University Dresden Dresden Germany
7. Department of Paediatrics Medical University of Vienna Vienna Austria
8. Paediatric Haemostasis and Thrombosis Unit Paediatric Haemophilia Center Department of Paediatrics LMU Dr. von Hauner Children's Hospital University Hospital Munich Germany
9. Institute of Experimental Hematology and Transfusion Medicine Medical Faculty University Hospital Bonn University of Bonn Bonn Germany
10. Center for Rare Diseases Bonn (ZSEB) University Clinic Bonn Bonn Germany
11. Hannover Medical School Department of Hematology Hemostasis, Oncology and Stem Cell Transplantation Hannover Germany