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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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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.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.