1. Food Science and Nutrition University of Iceland Reykjavik Iceland
2. The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland
3. Pharmaceutical Sciences School of Health Sciences University of Iceland Iceland
4. Medicine University of Iceland Reykjavik Iceland
5. Department of Geriatrics the National University Hospital of Iceland Reykjavik Iceland
6. Icelandic Heart Association Kopavogur Iceland
7. Laboratory of Epidemiology and Population Sciences National Institute on Aging National Institutes of Health Bethesda Maryland USA
8. Department of Psychology Reykjavik University Reykjavik Iceland
9. Mental Health Services Landspitali–The National University Hospital of Iceland Iceland
10. Health Promotion Sport, and Leisure Studies School of Education University of Iceland Reykjavik Iceland