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The horizontal fraction bar was introduced by the Arabs.
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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Illicit drug use costs the United States approximately $181 billion every year.