The researchers found that thirty-seven percent of the monkeys that ate as much as they wanted had died of causes related to aging after twenty years.

VOA: special.2009.09.01

Twenty years after the Civil War, the Unitedbl States had become one of the leading industrial nations of the world.

VOA: special.2010.06.03

He found that those who came after Title Nine had a seven percent lower risk of obesity twenty to twenty-five years later.

VOA: special.2010.03.04

She has announced plans to end the show in September of two thousand eleven after twenty-five years.

VOA: special.2010.04.16

Twenty years ago, the European Bank of Reconstruction and Development was created to help former communist countries after the fall of the Soviet Union.

VOA: special.2011.05.27

Jo Luck stepped down this year after almost twenty years as chief executive officer.

VOA: special.2010.06.22

I think a good deal of what happened was from the inside." Twenty years after the fall of the Berlin Wall, the debate continues.

VOA: standard.2009.11.03