Study provides clues to preventing and treating cancer spread

Isn't it odd that cancer cells from one organ, such as the skin, can travel and take root in a totally different organ, like the lung?

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<p><a href="http://www.physorg.com/news136471531.html">Study provides clues to preventing and treating cancer spread</a></p> <p>Isn't it odd that cancer cells from one organ, such as the skin, can travel and take root in a totally different organ, like the lung?</p>