"I believe that people fall into a whole bunch of different risk categories," he said.

And, in any case, many of the women who get breast cancer don't fall into a known risk category.

For less healthy customers whose risk category does not change, prices would fall only about 5 percent.

An example of a device in the "low risk" category would be contact lenses.

They've put her in the 'at risk' category, you know.

Additional points in special risk categories are assigned to selected patients.

Many did not fit into any of the risk categories listed in the study.

The first is that we really want to see three instead of five risk categories.

"It becomes a sort of red flag that puts you in the high risk category."

The three risk categories are based in large part on the rate of a species' population decline over the last 10 years.