1. University of Central Florida; Orlando Florida
2. University of Connecticut Health Center; Farmington Connecticut
3. School of Medicine; University of Maryland; Baltimore Maryland
4. National Institute on Aging; National Institutes of Health; Bethesda Maryland
5. Hebrew Senior Life Institute for Aging Research; Boston Massachusetts
6. School of Medicine; Harvard University; Boston Massachusetts
7. California Pacific Medical Center Research Institute; San Francisco California
8. College of Physicians and Surgeons; Columbia University; New York New York
9. Wake Forest University School of Medicine; Winston-Salem North Carolina
10. Foundation for the National Institutes of Health; Bethesda Maryland
11. University of Iceland; Reykjavik Iceland
12. Icelandic Heart Association; Kopavogur Iceland
13. Department of Social Medicine; CAPHRI School for Public Health and Primary Care; Maastricht University; Maastricht the Netherlands
14. University of Pittsburgh; Pittsburgh Philadelphia
15. Department of Preventive Medicine; University of Tennessee; Memphis Tennessee
16. School of Medicine; University of Pittsburgh; Pittsburgh Philadelphia