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JNCI Journal of the National Cancer Institute 2006 98(14):959-960; doi:10.1093/jnci/djj317
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© Oxford University Press 2006.

NEWS

Split Prostate Cancer Four Ways, Willett Says

Rabiya S. Tuma

The first 10% of the full text of this article appears below.

Researchers recognize that aggressive and slow-growing prostate cancers are probably different entities, and data suggest that the risk factors for developing the two types differ as well. Now, Walter Willett, M.D., Dr.P.H., and colleagues are proposing that the causes of prostate cancer in younger men differ from the causes of the disease in older men. If their hypothesis is correct, then researchers will have to divide prostate cancer cases four ways—aggressive versus nonaggressive and younger versus older age of onset—to identify risk factors associated with the disease.


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  		Walter Willett

 
Historical data and results from the ongoing Health Professionals Follow-Up Study already suggest that the cause of the . . . [Full Text of this Article]

Implications for Study Design


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