1. 1Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
2. 2Department of Medical Microbiology and Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
3. 3Section of Thrombosis and Haemostasis, Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
4. 4Department of Clinical Medicine, K.G. Jebsen Thrombosis Research and Expertise Centre, UiT - The Artic University of Norway, Tromsø, Norway
5. 5Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
6. 6Department of Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark
7. 7Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
8. 8Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
9. 9Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
10. 10Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
11. 11Department of Hematology, Trondheim University Hospital, Trondheim, Norway