21.   These findings raise the possibility that thalidomide has a potent effect on the immune system or may even kill myeloma cells directly.

22.   These findings raise some questions about the notion of capitalism as a system based only on selfishness and greed.

23.   They say the finding raises troubling questions about genetic testing and about what women should do if they find that they have one of the cancer-causing genes.

24.   These findings raise serious questions about whether public telephones would be an adequate substitute for the fire alarm boxes scattered throughout the city.

25.   Private laboratories hired by companies near the Trade Center site are also testing for asbestos, and those findings have raised further questions.

26.   But he said the findings raise questions about the safety of other calcium channel blockers and of the newer, once-a-day versions of nifedipine.

27.   Experts say the findings raise an interesting possibility but that larger studies are needed to confirm the results.

28.   Meltzer, who was not involved with the research, said the melanoma finding raises great hopes that the ambitious Cancer Genome Project will pan out.

29.   Nevertheless, experts said the findings should not raise undue concern.

30.   Such findings have raised the spirits of researchers and patients, but no one knows whether they will hold up over years of use.