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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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There are approximately 3 million unintended pregnancies in the United States each year.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.