1. Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Bethesda, MD
2. Department of Health Sciences and the EMGO+ Institute for Health and Care Research, VU University Amsterdam, Amsterdam, Netherlands
3. Division of Public Health Sciences, Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle, WA
4. Cardiovascular Engineering, Inc., Norwood, MA
5. Department of Nutrition and Dietetics, Internal Medicine, VU University Medical Center, Amsterdam, Netherlands
6. Division of Epidemiology and Clinical Applications, National Eye Institute, Bethesda, MD
7. Icelandic Heart Association Research Institute, Kopavogur, Iceland
8. Faculty of Medicine, University of Iceland, Reykjavik, Iceland