Last year,a study in the medical journal Neurology found smoking to be an established risk factor in developing the disease.

VOA: special.2010.03.09

They say the drug should be tested on thousands more people, including those in different risk, age and ethnic groups.

VOA: special.2009.04.08

They should also be warned that cigarette smoking works with the alcohol in a way that further increases the risk of esophageal cancer.

VOA: special.2009.06.23

Beans should not be planted until all risk of freeze has passed in the spring.

VOA: special.2009.03.24

The fact that Americans would be tired of having their sons and daughters at risk and in battle is not surprising,"

VOA: standard.2009.09.03

She says the security forces should be more proactive in monitoring what she calls high-risk suspects.

VOA: standard.2010.03.24

"There are at least 27 different indigenous groups in Colombia that are considered to be at risk of extinction largely as a result of armed conflict and forced displacement.

VOA: standard.2009.03.22

"We did not anticipate that there would be an increase in this group and we believe it may be an indicator of a new risk factor for gastric cancer which has not yet been identified."

VOA: standard.2010.05.12

Given that Qatar is not a state party and that Qatar has invited the Sudanese president, and he would very likely be using his personal jet, I see no risk at all in him traveling there."

VOA: standard.2009.03.23

But central to the debate going on in Britain is the very credibility of the Afghan government as more and more question whether British lives should be put at risk in support of what is seen as a less than clean Hamid Karzai government.

VOA: standard.2009.11.04

What will be the proper mix in different risk groups, in different subtypes, in different backgrounds if the goal is to reach a vaccine -- one vaccine -- that could work for all people and nations?" But the researchers say the findings offer new hope for AIDS research.

VOA: standard.2009.10.20

"One of the things that this study actually allows us to do, is to begin to get a sense as to how much of the burden of infection is an added burden on a patient who is already at risk of dying because of the underlying diseases that led them to be in the intensive care unit,"

VOA: standard.2009.12.08