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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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The familiar sounds of your heart are made by the heart's valves as they open and close.