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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Did you know?
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.