1. Coagulation Laboratory; Department of Clinical Chemistry, Microbiology and Immunology; Ghent University Hospital; Ghent Belgium
2. CRC and Division of Clinical-Epidemiology; Department of Health and Community Medicine; University of Geneva and University Hospitals of Geneva; Geneva Switzerland
3. Cardiology Angiology Center Bethanien (CCB) Vascular Center-Coagulation Center; Frankfurt Germany
4. Department of Medicine; Jagiellonian University Medical College; Krakow Poland
5. Division of Angiology and Haemostasis; Faculty of Medicine; University Hospitals of Geneva and Geneva Platelet Group; Geneva Switzerland