The researchers said tPA improved the chances of a successful result by thirty-one percent and produced no change in the death rate.

VOA: special.2009.09.22

In five of them, the rate at which fish are being taken out of the sea has dropped to a level that should let the populations recover.

VOA: special.2009.09.08

In the U.S., the survival rate is one in 10 for victims of heart attacks outside a hospital....

VOA: standard.2010.06.04

Here in the U.S., the rate of obesity doubled over a span of 16 years.

VOA: standard.2010.08.10

Researchers adjusted their computer algorithm to the slower insulin absorption rate and on a repeat experiment blood glucose was tightly controlled in all of the subjects.

VOA: standard.2010.04.15

Novy-Hildesley explains, the doctor faced a high rate of infant mortality in the clinic.

VOA: standard.2009.12.18

The U.S.economy grew at a faster than expected rate at the end of 2009, up nearly six percent in the last three months of the year.

VOA: standard.2010.03.02

Days after Mexico suspended public activities virus,testing it, flu, to reduce the spread of swine flu, the country is reporting a leveling off in the rate of new infections.

VOA: standard.2009.05.03