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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The horizontal fraction bar was introduced by the Arabs.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.