1. Haemostasis Section, Biotherapeutics Group National Institute for Biological Standards and Control Potters Bar UK
2. Department of Coagulation Royal Hallamshire Hospital Sheffield UK
3. Katharine Dormandy Haemophilia and Thrombosis Centre Royal Free Hospital London UK
4. Haematology Department Haemostasis Laboratory University Hospital of Wales Cardiff UK
5. Haemostasis Department Newcastle Upon Tyne Hospitals Newcastle upon Tyne UK
6. The Royal London Hospital Haemophilia Centre The Royal London Hospital London UK
7. Haemophilia Unit University Hospitals Birmingham Birmingham UK