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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.