11.   By last September, simple activities like getting out of bed and brushing her teeth hurt, so Lipinski was forced to pinpoint its cause.

12.   Experts note that pinpointing the cause of cancer clusters can be impossible.

13.   He cannot pinpoint the cause of the injury, speculating that he could have been hurt swinging the bat or while doing wrist curls with weights.

14.   Here is a comparison of these numbers to those of previous years and an attempt to pinpoint the cause.

15.   If scientists could pinpoint the genetic causes of disease, they could treat them at their roots.

16.   In the turmoil that follows a rampage shooting by a killer like James Davis in Asheville, N.C., there is usually a scramble to pinpoint the cause.

17.   In their search to pinpoint a cause, investigators have ruled out contamination of the citric acid that addicts use to dissolve heroin and the injection needles.

18.   Investigators have not pinpointed the cause of the blaze, but they believe it started in the basement.

19.   It is difficult to pinpoint the cause of the symptoms people in Pancevo report without scientific tests.

20.   Now fire officials must pinpoint the cause of the blaze that scorched hundreds of acres of hillside.