But recent findings suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.09.22

But recent findings have suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.08.12

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

VOA: special.2009.03.24

President Kennedy once said: "I am certain that after the dust of centuries has passed over our cities, we,too,will be remembered not for our victories or defeats in battle or politics, but for our contribution to the human spirit."

VOA: special.2010.10.29

Political analysts say they doubt an immigration reform bill will be passed this year with congressional elections in November.

VOA: standard.2010.04.12

So far,the bill has passed the house and is waiting to be picked up in the Senate.

VOA: standard.2010.05.27

Early this week, hundreds of women demonstrated in Yemen's capital, demanding the law be passed.

VOA: standard.2010.03.27

LeMieux also complains the Democrats plan has new taxes on health insurance providers which he says would be passed on to consumers in the form of higher premiums.

VOA: standard.2009.10.10

"Because as I speak to you, Nigeria is not yet fully ready, so I hope some of this will be passed on to Nigeria to force them to be ready in time."

VOA: standard.2009.10.22

South Korea warns any long-range launch by the North will be a violation of a U.N.resolution passed in 2006, when North Korea conducted long-range missile and nuclear weapons tests within months of each other.

VOA: standard.2009.03.12