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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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There are 60,000 miles of blood vessels in every adult human.

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Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

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In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Children Understanding Death Children Understanding Death
In this cartoon, Boss Tweed welcomes cholera—a skeletal figure of death carrying a handbag from “Asi In this cartoon, Boss Tweed welcomes cholera—a skeletal figure of death carrying a handbag from “Asi
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Video: Transcription—A molecular view

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