1. Department of Hematology Radboud University Medical Center Nijmegen The Netherlands
2. Haemophilia Treatment Center Nijmegen, Eindhoven, Maastricht The Netherlands
3. Indiana Hemophilia & Thrombosis Center Indianapolis IN USA
4. Enzyre BV, Noviotech Campus Nijmegen The Netherlands
5. Laboratory for Hematology, Department of Laboratory Medicine Radboud University Medical Center Nijmegen The Netherlands