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Author Question: A medical study examined data on patients with cardiovascular disease who were currently non-smokers ... (Read 2432 times) |
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.