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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
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There are 20 feet of blood vessels in each square inch of human skin.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.