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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Approximately 25% of all reported medication errors result from some kind of name confusion.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Did you know?
Your heart beats over 36 million times a year.