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Why do nonsmokers get lung damage?

August 19, 2008 11:13:12 AM PDT
Researchers may have a new clue as to why nonsmokers develop lung damage and perhaps even lung cancer.They're looking at newly discovered air pollutants, so-called free radicals that attach to small particles of air pollution.

Scientists say these free radicals are remarkably similar to those found in cigarette tar.

Researchers say the findings are preliminary and more study is needed.


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