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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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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.