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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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The horizontal fraction bar was introduced by the Arabs.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.