One thought on “Week Twelve

  1. cancer is number one killer in America. cancer can be caused by a lot of things such as smoking, metastasis, lymphoma, leukemia, etc. metastasis is the process of having cancer spread all over your body. sometimes some people don’t realize that they have cancer until it spread all over.it can reach to a stage where medicine cannot do anything. lymphoma and leukemia are the two classes of cancer arise from hematopoietic. the way to battle against cancer is surgery, chemotherapy, and radiation.

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