1. MSc RN Van Creveldkliniek, University Medical Center Utrecht, Room C01.425, PO Box 85500, 3508 GA Utrecht , The Netherlands
2. Canterbury Christ Church University, Kent , UK
3. Coagulation Unit, Karolinska University Hospital, Stockholm , Sweden
4. University Hospital Frankfurt, Frankfurt , Germany
5. University Hospital Leuven, Leuven , Belgium
6. The Katharine Dormandy Haemophilia Centre & Thrombosis Unit, Royal Free London NHS Foundation Trust, London , UK