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What Is Cancer? What Causes Cancer?

knowledge center home " cancer / oncology " all about cancer " what is cancer? Cancer is a class of diseases characterized by out-of-control cell growth. There are over 100 different types of cancer, and each is classified by the type of cell that is initially affected.

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    Added to this shelf by: ShuangLiang, on 06-15-2014 1:13pm

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