But he also said additional research is needed to better understand how the vaccine reduced the risk in those individuals.

VOA: special.2009.10.13

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

But Mr.Gustafson sees a better chance for the efforts to increase the popularity of the orange sweet potato in Africa.

VOA: special.2011.01.04

But a new study shows that another treatment may have better results for patients who were not helped by drug therapy.

VOA: special.2010.02.17

But improved farming methods later increased their yields and, at the same time, made better use of chemical nitrogen fertilizer.

VOA: special.2009.07.28

But Anne Neal from the American Council of Trustees and Alumni says higher prices do not guarantee a better general education.

VOA: special.2009.10.22

But Spielberg says he is thankful that Rockwell painted pictures so that he could influence filmmakers to be better artists.

VOA: special.2010.09.20

But she realized then that his mind would forever be on the march, always requiring something newer, better and more perfect.

VOA: special.2009.09.26

But a recent study shows that another treatment may have better results for patients who were not helped by drugs.

VOA: special.2010.03.02

But she went to the local public school and sat among the children so she could learn better writing skills.

VOA: special.2010.06.27

But one morning he come in, and Smiley asked him how was his wife, and he said she was better,thank God.

VOA: special.2009.08.29

He said life is sometimes really hard, but you can make it a lot better if you try to prepare for it.

VOA: special.2010.05.16

But she tells us in an e-mail: "A live conference feed was 100% better than a textbook.

VOA: special.2009.11.12

They say the roots develop better. But Jeffrey Dinslage, president of Nature Hills Nursery in Omaha,Nebraska, points out that bare-root roses come without soil.

VOA: special.2010.06.15