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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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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.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.