113 Views • Created 10 years ago By Vsauce • Updated about a year ago

Created By Vsauce • Updated about a year ago

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Why Don't We All Have Cancer?

Origin Entry: Why Don't We All Have Cancer?
Description

Thanks to Cancer Research UK! http://www.cancerresearchuk.org Links to LEARN MORE and SOURCES are below. follow me: http://www.twitter.com/tweetsauce What is cancer?

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