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2015-06-26T20:55:35+08:00

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Lung cancer is the uncontrolled growth of abnormal cells that start off in one or both lungs; usually in the cells that line the air passages. The abnormal cells do not develop into healthy lung tissue, they divide rapidly and form tumors.
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2015-06-28T17:32:48+08:00
That is not actually about math
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