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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

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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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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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

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