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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.