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September 14th, 2004
Tiny battlefield in the war on disease
Abstract:
To the incredibly tiny gold particles that doctors send to search a blood sample for signs of illness, human cells would seem as big as mountains.
But the particles' mission is to hunt down something more their size: prostate specific antigen, or PSA, a signal that prostate cancer may be on its way to returning--long before it actually does.
Source:
* chicagotribune.com
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