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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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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are approximately 3 million unintended pregnancies in the United States each year.