There are approximately 3 million unintended pregnancies in the United States each year.
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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Continuous variation in a natural population
This graphic illustrates the original systems model of politics advanced by David Easton. Politics