1. Department of Clinical Epidemiology; Leiden University Medical Center; Leiden the Netherlands
2. De Onderzoekerij; Leiden the Netherlands
3. Department of Communicable Disease Control; Municipal Health Service; Utrecht the Netherlands
4. Université Paris Descartes; INSERM UMRS765; Paris France
5. Department of Vascular Medicine; Hôpital Européen Georges Pompidou, AP-HP; Paris France
6. Department of Thrombosis and Haemostasis; Leiden University Medical Center; Leiden the Netherlands