21.   They were also offered medical assistance if they needed help to quit using tobacco.

22.   Those who have used spit tobacco for years complain of headaches, sleepless nights and a lack of concentration.

23.   Tobacco is the leading cause of death and disease in the U.S. Forty-three percent of American teen-agers now use tobacco, and the numbers are climbing.

24.   Virtually every player will go out of his way to advise youngsters to not start using tobacco.

25.   What little data exist suggest that lesbians drink more than heterosexual women, are more overweight and may use tobacco more, the report found.

26.   With all the information we have on the dangers of using chewing tobacco, you would think Major League Baseball officials would have taken an equally strong stance.

27.   Others use leaf tobacco that forms a chaw in the cheek.

28.   Broadleaf tobacco is used as a wrapper in cigars.

29.   Health groups say that most smokers start using tobacco before they reach adulthood.

30.   In earlier stages is a collaboration with the U.S. Navy and the National Institutes of Health to use tobacco to make stem cells grow.

v. + tobacco >>共 165
regulate 20.24%
chew 11.72%
grow 5.94%
use 5.63%
sell 4.87%
buy 3.20%
ban 3.04%
smoke 1.37%
raise 1.22%
say 1.22%
use + n. >>共 1468
money 3.08%
force 2.34%
technology 1.42%
drug 1.21%
name 1.17%
computer 1.08%
fund 1.06%
proceeds 0.84%
information 0.74%
method 0.72%
tobacco 0.04%
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