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

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

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