Last year,Doctor Chan reported that a long-term study of almost fifty thousand men showed that aspirin can help prevent colon cancer.

VOA: special.2009.09.01

Because of his disease, Lincoln joked to his doctor: "Good,now at last I have something I can give everyone."

VOA: special.2009.07.24

Other scientists have shown that sun spot activity can be measured in periods of time that last about eleven years.

VOA: special.2009.09.29

In a different case, a ruling last week in New York has renewed debate about who can "own" genetic information.

VOA: special.2010.04.09

The last hurrah also can mean the last acts of a politician, before his term in office ends.

VOA: special.2010.04.11

It may last a few seconds, but it can get worse and worse with age, leading to a heart attack or stroke.

VOA: special.2010.02.17

In colder climates, parsley can go into the ground two to three weeks before the last winter freeze is likely to happen.

VOA: special.2009.06.02

Last year Doctor Chan reported that a long-term study of almost fifty thousand men showed that aspirin can help prevent colon cancer.

VOA: special.2009.08.19

The problem may last a few seconds, but it can get worse and worse with age, leading to a heart attack or stroke.

VOA: special.2010.03.02

You can also find last week's program about composers, including two women who have won Pulitzer Prizes, Ellen Taaffe Zwilich and Jennifer Higdon.

VOA: special.2010.07.19

Mister Zundt says a hydrogen bus will last an average of twenty years, while a diesel bus can be used for five to eight years.

VOA: special.2009.09.07

He points out that traditional flowerpots made from petroleum-based plastics can last much longer.

VOA: special.2010.06.01

A tension headache can last from a half hour to a whole week.

VOA: special.2010.03.30

But the muscle and joint pain can last for weeks or months.

VOA: special.2009.04.13