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There are approximately 3 million unintended pregnancies in the United States each year.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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People about to have surgery must tell their health care providers about all supplements they take.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.