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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.