The Framingham Heart Study of the National Heart, Lung, and Blood Institute of the National Institutes of Health, USA.|The Framingham Heart Study of the National Heart, Lung, and Blood Institute of the National Institutes of Health, USA.|The Framingham Heart Study of the National Heart, Lung, and Blood Institute of the National Institutes of Health, USA.|The Framingham Heart Study of the National Heart, Lung, and Blood Institute of the National Institutes of Health, USA.|The Framingham Heart Study of the National Heart, Lung, and Blood Institute of the National Institutes of Health, USA.|The Framingham Heart Study of the National Heart, Lung, and Blood Institute of the National Institutes of Health, USA.