But now the first worldwide study warns that one in six of the many different kinds of mangroves could disappear.

VOA: special.2010.04.20

In nineteen twelve, he began to study a skin disease that was killing thousands of people in the South.

VOA: special.2011.05.31

David Wilber of Loyola University Medical Center in Illinois was the lead writer of a report about the study.

VOA: special.2010.03.02

Harris Perlman says the suicide molecule halted and even reduced rheumatoid arthritis in seventy-five percent of mice in the study.

VOA: special.2010.03.16

Ellen Yeh from the Stanford University School of Medicine in California was one of the authors of the study.

VOA: special.2009.08.03

He says the agency currently has twenty-eight projects working in astrobiology, or the study of life in outer space.

VOA: special.2010.05.25

Researchers at Harvard University in the United States and the Stockholm School of Economics in Sweden did the study.

VOA: special.2009.10.21

And many have. Yet now comes a study showing an increase in the number of injuries in "phys ed" class.

VOA: special.2009.08.06

The Institute of International Education in New York says that was the biggest increase of any area of study.

VOA: special.2009.05.07

The vaccine did not lower the amount of virus in the blood of volunteers who became infected during the study.

VOA: special.2009.10.13

She says the good news in the study is that some species of mangrove can be reforested relatively easily.

VOA: special.2010.04.20

Others disagree and point to a study just published in the Journal of the American Academy of Child and Adolescent Psychiatry.

VOA: special.2009.08.07

Doctor DeMeo says some of the people in the study did not smoke much but still developed severe lung disease.

VOA: special.2009.06.03

Geographers from three American colleges did a study that will appear in the Proceedings of the National Academy of Sciences.

VOA: special.2010.03.23