1. Division of Angiology and Hemostasis, Geneva University Hospital, Geneva, Switzerland
2. Department of Vascular Medicine, Amsterdam Medical Center, Amsterdam, the Netherlands
3. Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
4. Emergency Department, Centre Hospitalier Universitaire d’Angers, L'Université Nantes Angers Le Mans, Angers, France
5. Cliniques Universitaires Saint-Luc, Bruxelles, Belgium
6. Liège University Hospital, Liège, Belgium
7. Emergency Department, Geneva University Hospital, Geneva, Switzerland
8. Hôpital Européen Georges-Pompidou, Paris, France
9. Emergency Department, Brest University Hospital, Brest, France
10. Centre Hospitalier d’Agen, Agen, France
11. Centre Hospitalier d’Argenteuil, Argenteuil, France
12. Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
13. Centre Hospitalier de Morlaix, Morlaix, France
14. Department of Internal Medicine, Maasstad Hospital, Rotterdam, the Netherlands
15. Department of Internal Medicine, Flevoziekenhuis Hospital, Almere, the Netherlands
16. Rijnstate Hospital, Arnhem, the Netherlands
17. Maastricht University Medical Center, Maastricht, the Netherlands
18. Van Weel-Bethesda Hospital, Dirksland, the Netherlands
19. Amphia Hospital, Breda, the Netherlands
20. Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
21. Department of Vascular Medicine, University Medical Center Groningen, Groningen, the Netherlands
22. Ottawa Health Research Institute, Ottawa, Canada23Centre d’Investigations Cliniques, Université de Brest, Brest, France