1. K.G. Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT–The Arctic University of Norway Tromsø Norway
2. K.G. Jebsen Center for Genetic Epidemiology Department of Public Health and Nursing Norwegian University of Science and Technology Trondheim Norway
3. HUNT Research Centre Department of Public Health and Nursing Norwegian University of Science and Technology Levanger Norway
4. Department of Clinical Epidemiology Leiden University Medical Center Leiden the Netherlands
5. Division of Internal Medicine University Hospital of North Norway Tromsø Norway