Studies show that there are elevated levels of white blood cells.

Another 7,000 to 8,000 children were found to have dangerously elevated levels of lead in their blood.

Commodity prices are likely to stay at elevated levels for some time, so this problem is not going to go away.

There was no significantly elevated level of alcohol in his blood.

The universal language of art is also spoken, and on an elevated level.

At that elevated level we are now into the danger zone.

When found in a home at elevated levels it can increase the likelihood of developing cancer.

Some times there are elevated levels of protein in liquor study.

"Until the last three weeks we had no data to support that there were compounds or agents at elevated levels."

But now he thinks elevated levels of mercury could be to blame.