There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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 Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Amazing NASA Pictures Collection
Amazing NASA Pictures Collection
Amazing NASA Pictures Collection
Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc