I need help on questions about Brain Cancer? Cancer Risk

I need to know a answers to a following questions:
1) What is brain cancer?s attribute to mitosis?
2) What have been a sorts of cells concerned in brain cancer?
3) What have been a causes/how it is widespread by a body?
4) What have been a symptoms of brain cancer?

Thank we so most in advance!

Cancer Topics: cells, mitosis, Relationship, symptoms of brain cancer

Source: http://riskcancer.com/i-need-help-on-questions-about-brain-cancer-2.cancer

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