Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Lewis symbols,(Figure 1)
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