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

VOA: special.2009.01.21

After almost 20 years in the casting business, Wolfe says he knows what it takes to become a star.

VOA: standard.2010.07.22

It is being called "the festival of freedom" as the city commemorates the day 20 years ago that the Wall fell.

VOA: standard.2009.11.09

Country music news headlines included the break-up of Brooks and Dunn after 20 years performing as a duo.

VOA: standard.2009.12.22

Mayo Clinic researcher Gabriel Thabut. and his colleagues reviewed 20 years of records from more than 15,000 transplants.

VOA: standard.2010.07.14

The South West Africa People's Organization, which has dominated Namibian politics since independence nearly 20 years ago, is expected to retain power.

VOA: standard.2009.11.28

"Possibly,he is one of the most effective members of the Congress that served during the last 20 years,".

VOA: standard.2009.08.26

Hizbul Mujahideen was formed in the Kashmir valley 20 years ago to fight for the integration of the entire region into Pakistan.

VOA: standard.2009.08.07

Social security premiums have increased in the last 20 years, putting families on the threshold of poverty.

VOA: standard.2010.02.25

"And whether that is 15 or 20 years, we will hope for accelerated economic development in Afghanistan."

VOA: standard.2009.12.09

On Monday,a Sri Lankan court sentenced Tissainayagam to 20 years of hard labor for causing "communal disharmony".

VOA: standard.2009.09.01

Now,20 years later, some of their voices are being heard, but their rights continue to be violated.

VOA: standard.2009.10.08

Remais and his colleagues searched government documents and science reports published over the past 20 years to quantify and assess China's environmental health.

VOA: standard.2010.04.07

Darwin knew his ideas on evolution would upset the religious establishment and he delayed publication of his work for more than 20 years.

VOA: standard.2009.11.25