1. Division of Angiology and Haemostasis and Laboratory of Haemostasis; Geneva University Hospitals; Geneva Switzerland
2. CRC and Division of Clinical Epidemiology; Department of Health and Community Medicine; University of Geneva and University Hospitals of Geneva; Geneva Switzerland
3. Division of Haematology and Haematology Central Laboratory; CHUV Lausanne University Hospital; Lausanne Switzerland
4. Center for Perioperative Thrombosis and Haemostasis and Unilabs Coagulation Laboratory; Zurich Switzerland
5. Division of haematology and Laboratory of haematology; Lucerne Cantonal Hospital; Lucerne Switzerland
6. Centre for Laboratory Medicine; Haemostasis and Haemophilia Centre St Gallen; St Gallen Switzerland
7. Department of Haematology and Central Haematology Laboratory; Inselspital University Hospital; Bern Switzerland
8. Department of Clinical Research; University of Bern; Bern Switzerland
9. Division of Haematology; University Hospital Zürich; Zürich Switzerland
10. Diagnostic Haematology; University Hospital Basel; Basel Switzerland