1. Specialised Hospital for Active Treatment “Joan Pavel” Sofia Bulgaria
2. Royal Hallamshire Hospital Sheffield UK
3. Werlhof‐Institut für Hämostaseologie GmbH Hannover Germany
4. Manchester Royal Infirmary Manchester UK
5. Basingstoke and North Hampshire Hospital BasingstokeUK
6. Royal Free Hospital London UK
7. University Hospital Hamburg‐Eppendorf HamburgGermany
8. SRH Kurpfalzkrankenhaus and Hemophilia Center Heidelberg Germany
9. Medical University of Vienna Vienna Austria
10. Octapharma AG Lachen Switzerland
11. Institute of Experimental Haematology and Transfusion Medicine Bonn Germany