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On average, the stomach produces 2 L of hydrochloric acid per day.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.