An extremely low body temperature can cause the heart to beat so slowly that a pulse may be difficult to find.

VOA: special.2009.12.30

But she says it must be shown scientifically that cord blood stem cells cause improvement, and not other reasons.

VOA: special.2011.02.01

"I am not the first president to take up this cause," he said "but I am determined to be the last."

VOA: special.2009.09.12

And the crisis had to be solved. "If we fail," Roosevelt said, "the cause of self-government throughout the world will suffer greatly."

VOA: special.2010.08.26

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

VOA: special.2010.02.04

"By two thousand and twenty, C.O.P.D.will likely be the third leading cause of death across the world."

VOA: special.2009.06.23

Still,broken bones should be treated quickly because they can restrict blood flow or cause nerve damage.

VOA: special.2009.02.04

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

VOA: special.2011.07.26

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

It is rather for us to be here dedicated to the great task remaining before us that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion that we here highly resolve that these dead shall not have died in vain that this nation,under God, shall have a new birth of freedom and that government of the people, by the people,for the people, shall not perish from the earth."

VOA: special.2009.11.12

The lights are off and they must be lookingfor a fuse box, 'cause them flashlights,they're keeping me awake.

VOA: standard.other

You know why we'rea good partnership, Forrest? 'Cause we be watching outfor one another, like brothers and stuff.

VOA: standard.other

Macpherson says there is also no way of knowing whether there could be another eruption that could cause a similar ash cloud.

VOA: standard.2010.04.15

You could have oil getting on the plants, which could cause them, at the very least, to be stressed if not die.

VOA: standard.2010.05.09