No large study of drug resistance has been done in Africa.

Some have developed drug resistance and dropped out, waiting to die.

Tests can help your doctor and you find out whether drug resistance has occurred.

Treatment of the infection is difficult due to drug resistance.

There are also increasing concerns about the issue of drug resistance.

It's easy to see how drug resistance in any one country grows into a global problem.

And the drugs must be started simultaneously to avoid drug resistance.

There is no general strategy to tackle the problem of drug resistance.

Drug resistance already is a problem, but no one knows its magnitude and importance.

The communicative process of drug resistance among high school students.