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From the July 2003 Scientific American Magazine | 0 comments

Untangling the Roots of Cancer ( Preview )

Recent evidence challenges long-held theories of how cells turn malignant--and suggests new ways to stop tumors before they spread

By W. Wayt Gibbs   

 
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What causes cancer?



Tobacco smoke, most people would say. Probably too much alcohol, sunshine or grilled meat; infection with cervical papillomaviruses; asbestos. All have strong links to cancer, certainly. But they cannot be root causes. Much of the population is exposed to these carcinogens, yet only a tiny minority suffers dangerous tumors as a consequence.

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