1. the hemostasis and Thrombosis Research Center, University Hospital, Leiden, The Netherlands
2. Dipartimento Biochimica e Biologia Moleculare, Università degli studi di Ferrara, Ferrara, Italy
3. Diagnostic Haematology, The Royal Melbourne Hospital, Victoria, Australia
4. INSERM CJF 91-01, UFR des Sciences Pharma- ceutiques et Biologiques, Paris, France
5. Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
6. Department of Haematology, Charing Cross & Westminster Medical School, London, UK
7. Abteilung Humangenetik, Medizinische Hochschule, Hannover, Germany
8. Section for Hemostasis and Thrombosis, Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
9. Department of Biochemistry, School of Medicine, University of Vermont, Burlington, VT, USA
10. First Department of Internal Medicine, Nagoya University School of Medicine, Tsurumai-cho, Nagoya, Japan
11. Cancer Research Institute, Hospital Duran I Reynals, Barcelona, Spain
12. Biochemisches Labor, Universitäts-Kinderklinik Freiburg, Freiburg, Germany
13. Charter Molecular Genetics Laboratory, Thrombosis Research Institute, London, UK