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How cancer gets a blood supply - Cancer Research UK - Cancer
Once a cancer gets to a certain size it needs its own blood supply to get oxygen and nutrients to be able to grow. Find out how a tumour gets a blood supply and how cancers can spread through the blood system. More on this subject: http://www.cancerresearchuk.org/cancer-help/about-cancer/what-is-cancer/grow/how-a-cancer-gets-its-blood-supply This is a Cancer Research UK video. Learn more about cancer at www.cancerresearchuk.org/cancer-help/