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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.