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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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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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More than 4.4billion prescriptions were dispensed within the United States in 2016.

A fixed action pattern as an example of innate behaviour. A fixed action pattern as an example of innate behaviour.
A radiator may be either a down-flow or a cross-flow type. A radiator may be either a down-flow or a cross-flow type.
Proposed structure for keratin-type intermediate filaments Proposed structure for keratin-type intermediate filaments
Action of type I and type II topoisomerases, as shown by gel electrophoresis Action of type I and type II topoisomerases, as shown by gel electrophoresis
Male and female Lions (Panthera leo) Male and female Lions (Panthera leo)
Video: Introduction to Spirometry

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