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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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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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