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In 1864, the first barbiturate (barbituric acid) was synthesized.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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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.