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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.