1. University Clinic Bonn Bonn Germany
2. Institute of Hematology and Transfusion Medicine Warsaw Poland
3. Sheffield Haemophilia and Thrombosis Center Sheffield UK
4. National Hemophilia Center Chaim Sheba Medical Center Tel Hashomer Israel
5. Bayer Pharma AG BerlinGermany
6. Bayer Pharma AG Wuppertal Germany