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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.