Professor Christiano says the next step is to repeat the study in future research, with a larger number of patients.

VOA: special.2011.04.05

She suspects that chimps may be a step ahead of humans in how their bodies deal with the virus.

VOA: special.2009.09.08

Yet the passage of these three amendments to the Constitution was still a historic step in making blacks full and equal citizens.

VOA: special.2010.02.04

They offered visitors a chance to step into the future of home design and household technology.

VOA: special.2009.10.27

"Today,in the face of violence from those who would only destroy, Iraqis took a step forward in the hard work of building up their country.

VOA: special.2010.03.13

A third step is to increase the availability of credit for individuals and businesses.

VOA: special.2009.02.13

But others now say this period after the Civil War was a necessary step in creating a different kind of South from the one which had existed before.

VOA: special.2010.02.04

The next step was to negotiate terms of a peace treaty.

VOA: special.2010.07.15

People can learn the two-step, a kind of Western dance.

VOA: special.2009.02.16

Ting-Chi Wang leads us to the permanent exhibition called With a Single Step. She says that the exhibition about Chinese immigrants in America was based on the idea of a heros travels.

VOA: special.2010.03.03

"This is not a sign of weakness, but rather one more step on a clearly charted path to Chrysler's revival.

VOA: standard.2009.04.30

This is an important step forward, as a sovereign and united Iraq continues to take control of its own destiny,".

VOA: standard.2009.06.30

More important than that, it is a chance for China to step up its interaction with the rest of the world."

VOA: standard.2010.05.02

To get at these non-mutating parts of the virus, Nabel and his colleagues used a two-step vaccination process, called "prime-boost."

VOA: standard.2010.07.21