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Charles Brenton Huggins (1901-1997) was a Canadian-born American physician and physiologist and cancer researcher at the University of Chicago specializing in prostate cancer. He was awarded the 1966 Nobel Prize for Physiology or Medicine for discovering that hormones could be used to control the spread of some cancers. This was the first discovery that showed that cancer could be controlled by chemicals. He lived to be 95 and died of natural causes.