But traditional guidelines say not to use tPA if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.08.12

But many more would have died if not for a tsunami warning from the Japanese Meteorological Agency.

VOA: special.2011.06.07

I looked hard at him. I could not have been more surprised if he has said the same thing about Nepoleon, or Socrates,or Solomon.

VOA: special.2010.03.27

These Incan buildings face severe damage if the number of visitors is not more carefully controlled.

VOA: special.2009.04.22

I looked hard at my friend. I could not have been more surprised if he has said the same thing about Nepoleon,or Socrates,or Solomon.

VOA: special.2011.03.26

The idea is that lenders will be more responsible in making loans if they might not be able to pass off risky mortgages to investors.

VOA: special.2009.06.19

But if the batter hits the ball and it is not caught, the batter tries to run to one or more of the four bases on the field.

VOA: special.2009.04.12

"If we do not fix our health care system, America may go the way of GM paying more,getting less and going broke,"

VOA: standard.2009.06.15

The U.S.Commander in Afghanistan, Army General Stanley McChrystal, has said the U.S.will likely lose the war if the administration does not send more troops.

VOA: standard.2009.10.01

The top U.S.commander in Afghanistan, Army General Stanley McChrystal, has warned that the war with the Taliban could be lost if more troops are not deployed.

VOA: standard.2009.10.19

All three roommates are up for reelection in the fall, but Melissa Bean says even if one or more of them were to lose, that would not affect their friendship.

VOA: standard.2010.08.07

If so,why am I risking my life for this mission if we are not there to win it?" But more troops alone will not secure Afghanistan,says retired Staff Sergeant Brian McGough.

VOA: standard.2009.11.16

"Do you see that there may be a problem with Prime Minister Maliki putting on the ballot in the upcoming elections a referendum on that precise question?" "I think a referendum would be more possible if there were a perception that we were not living up to the security agreement.

VOA: standard.2009.09.10