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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 horizontal fraction bar was introduced by the Arabs.
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There are approximately 3 million unintended pregnancies in the United States each year.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.