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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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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Cyanide works by making the human body unable to use oxygen.
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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.
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
Shortly after his death, George Washington had already become myth—part Moses, part angel—in this wo