1. Hospices Civils de Lyon; Clinical Haemostasis Unit; Hopital Cardiologique Louis Pradel - Universite Lyon 1; Lyon France
2. Department of Pathology and Laboratory Medicine; UNC; Chapel Hill NC USA
3. Haemostasis Section; Biotherapeutics; National Institute for Biological Standards and Control; Potters Bar Hertfordshire UK
4. Cardiovascular Research Institute Maastricht (CARIM); University of Maastricht; Maastricht the Netherlands