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The horizontal fraction bar was introduced by the Arabs.

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More than 4.4billion prescriptions were dispensed within the United States in 2016.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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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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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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