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The horizontal fraction bar was introduced by the Arabs.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.