1. K. G. Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT The Arctic University of Norway Tromsø Norway
2. Brain and Circulation Research Group Department of Clinical Medicine UiT The Arctic University of Norway Tromsø Norway
3. Epidemiology of Chronic Diseases Research Group Department of Community Medicine UiT The Arctic University of Norway Tromsø Norway
4. Department of Pediatrics and Rady's Children's Hospital University of California, San Diego La Jolla CA USA
5. Department of Clinical Epidemiology Leiden University Medical Center Leiden the Netherlands
6. Division of Internal Medicine University Hospital of North Norway Tromsø Norway