They used information gathered over a period of 20 years, until 2003, in the Framingham Heart Study.

VOA: special.2009.01.21

Researchers used information from the Framingham Heart Study, which began in nineteen forty-eight.

VOA: special.2009.12.22

That study began 60 years ago in Framingham, Massachusetts, to learn more about the risks of heart attack and stroke.

VOA: special.2009.01.21