If the tests never yield a positive result, consult your doctor.

Thus, in young women, the test would yield many false-positive results.

In court here on Thursday, prosecutors said their expert's latest test yielded 76.

Still tests yielded poor air quality, specifically in one area of the school where the science and art labs were located.

The test also yielded further calibrations to many of the rover's systems.

This test generally yields a positive or negative result.

The test yielded a mean score of just over 50 per cent for all pupils participating.

Although practical tests at national level have yielded quite positive results, opinions on these vehicles differ.

Tests done on stored tissue are technically difficult and may not yield a definitive result.

What happens in the meantime, however, if those new standards and tests yield results that differ by gender, race or ethnic group?