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

You can see that when you get out to the highest groups here, the highest weights, the relative risk is up at two and a half or three, so that would be a 200% increase in risk for cardiovascular death or two to three times the risk of death.

当我们看图上相对风险最高的这组,也就是体重最大的这组,这组的相对风险大约是2.5倍到3倍,即心血管疾病致死的风险增加了200%,或者说增加了2到3倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And they are advising against travel by children, pregnant women and other groups at highest risk.

VOA: special.2009.11.24

That's one reason doctors want to know the risk of all groups of people before heading into surgery.

VOA: standard.2010.03.11

She says children are at risk of sexual violence, killing and maiming, and forced recruitment into armed groups.

VOA: standard.2010.02.04

"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

Dr.Segev says the research snows that men and African-Americans have a slightly higher risk of dying after donation than other groups, but the risk is still small and that it has nothing to do with having only one kidney.

VOA: standard.2010.03.11