Researchers have been looking for the cause or causes of attention deficit hyperactivity disorder.

VOA: special.2009.09.29

And though I now sink out of view and shall be forgotten, I believe I have made some marks which will tell for the cause of civil liberty long after I have gone."

VOA: special.2009.06.11

Now we're making foundations for the recovering patients, cause for some reason we can't find any explanations for the contaminations.

VOA: special.2009.04.17

The Centers for Disease Control says HEPA filters are effective in clearing the air of many particles that cause disease.

VOA: special.2009.07.14

They helped cause angry whites to form the Ku Klux Klan and other groups that terrorized blacks for years to come.

VOA: special.2010.02.04

The Centers for Disease Control and Prevention says heart disease is the leading cause of death in the United States.

VOA: special.2010.06.08

Their central nervous system may tell the brain that there is pain even when there is no cause for the pain.

VOA: special.2011.07.26

At the time that Miss Jordan left Congress, there were widespread reports that failing health was the cause for her decision.

VOA: special.2010.05.09

But in cases with a known cause the experts say salmonella is responsible for more than one-third of hospitalizations.

VOA: special.2011.01.11

With this latest discovery, the researchers say noise pollution in coral environments raises yet another cause for concern for these organisms.

VOA: special.2010.08.10

The World Health Organization says mosquitoes carry organisms that cause disease and death for millions of people throughout the world.

VOA: special.2009.05.26

Researchers for the RAND Corporation and the University of California at Los Angeles have said that few medical errors cause injury.

VOA: special.2010.07.13

The system helped cause the South to be the poorest part of the United States for many years.

VOA: special.2010.02.04

In "The Crucible",for example, he shows what happens when unreasonable dislike and fear cause people to accuse innocent people of horrible crimes.

VOA: special.2009.11.29

And the announcement a month later of a non-aggression treaty between Germany and the Soviet Union gave Tokyo even more cause for concern.

VOA: special.2011.05.26

The Nano,made by Tata Motors, is expected to cause a transportation revolution for millions of Indian families.

VOA: special.2009.03.28

"For all those whose cares have been our concern, the work goes on, the cause endures, the hope still lives and the dream shall never die."

VOA: special.2009.09.13

And identifying the cause of the pain can be difficult, especially for untrained doctors.

VOA: special.2011.07.26

The goal is to search for common genes that may cause the disease.

VOA: special.2009.04.07

They were recognized for their part in furthering the cause of women's golf.

VOA: special.2009.03.29

Officials believe that language difficulties cause problems for many in the Hispanic community.

VOA: special.2010.05.07

The Pacific Tsunami Warning Center watches for earthquake activity that could cause tsunamis.

VOA: special.2009.03.17