It is the point of no return for many cancer patients. A clump of malignant cells in the body has fooled some nearby blood vessels into reaching out and embracing it. Now the tiny mass can soak up all the nutrients it needs to become a solid tumor and a major, life-threatening menace. Not much can stop it from growing until its cells spread, or metastasize, throughout the body, traveling along those same blood vessels to far-distant points in the lungs, bones and brain.
For years, doctors have searched for ways to cut those crucial supply lines and, in effect, starve...
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