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The horizontal fraction bar was introduced by the Arabs.
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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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%.