11.   But advocates of the research say the work could ultimately lead to treatments that could help the living, including children born with now-incurable diseases.

12.   But it is too early to tell if the work will lead to changes in behavior.

13.   But his work there did lead him to a position he had always wanted -- a seat on the federal bench.

14.   But the researchers suggest that their work may someday lead to the use of spice extracts to protect healthy tissues in people undergoing radiation therapy.

15.   Cao said he hopes the animal work will lead to clinical trials in human patients.

16.   He hopes the work will lead him to a better job.

17.   His critics say the work will lead scientists inevitably toward the cloning of people.

18.   Her high-profile trial work has led to numerous television appearances on talk and news shows.

19.   His work also led to the creation of synthetic ferrite materials and advances in microwave electronics.

20.   His work led him to spend extensive time in Africa, Asia, and the Caribbean.