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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.