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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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

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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

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The average office desk has 400 times more bacteria on it than a toilet.

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