1. Clinical Division of Haematology and Haemostaseology, Department of Medicine I Medical University of Vienna Vienna Austria
2. PROMISE Department University of Palermo Palermo Italy
3. Haemophilia Treatment Center Simone Veil Hospital, GH Eaubonne‐Montmorency Eaubonne France
4. CSL Behring Milan Italy
5. CSL Behring Paris France
6. CSL Behring Marburg Germany
7. CSL Behring Brussels Belgium
8. Institute of Experimental Hematology and Transfusion Medicine University Hospital Bonn, Medical Faculty University of Bonn Bonn Germany