He has been tested for diabetes twice, with negative results.

The cow was tested several times here, with contradictory results.

That premise has been tested in one setting after another, with varying results.

In only a few months, the first pilot sets were tested with positive results.

However, it has often been tested with mixed results.

Given that several thousand people have been tested with negative results, the small number of actual cases could be considered good news.

A large pilot project was tested during the Canton fair in 2008 with excellent results.

These drugs are being tested in humans, apparently with mixed results.

Some experiments have been performed to test this hypothesis with mixed results.

Their hypothesis was tested in animal models of heart failure with positive results.