The investigators say they found no evidence that the university's scientists cheated to prove the existence of human-caused climate change.

VOA: special.2010.04.27

Yet researchers from Stanford University say new treatments are often no better than existing ones, but are almost always more costly.

VOA: special.2009.08.14

"No," you say,"it just can't be true! Who told you?" Comes the answer, "I got it by the grapevine."

VOA: special.2009.02.22

Robert Fulton would say for the rest of his life that he had no idea why he said such a thing.

VOA: special.2009.01.14

Then many people began to say that Post was nothing more than an airplane driver because he had no real education.

VOA: special.2009.03.18

It is safe to say there was no one there who had the same respect that Missus Sommers did for her surroundings.

VOA: special.2009.09.05

The researchers say they were able to store the vaccines for four months at forty-five degrees Celsius with no loss of quality.

VOA: special.2010.02.24

Today,scientists say a person dropped on the top of the mountain would live no more than ten minutes.

VOA: special.2010.06.30

I edit every word that I say, I say no words that have not gone through my hand, many of them my own."

VOA: special.2009.08.16

The scientists say they do not know how the treatment would work with patients who have no sensation at all below the injury.

VOA: special.2011.06.01

Experts say one of the reasons the gunfight is so interesting to many people is that no one knows who shot first or why.

VOA: special.2010.02.15

Social critics like to say that in children's activities these days, everyone gets an award just for trying, so no one will feel rejected.

VOA: special.2009.03.12

They say no photographer would make a picture that hides almost all of the people's faces.

VOA: special.2010.05.31

And during that time,supporters say, there has been no sign of major health or environmental problems.

VOA: special.2010.03.23