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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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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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Medication errors are three times higher among children and infants than with adults.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.