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

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The longest a person has survived after a heart transplant is 24 years.

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There are 20 feet of blood vessels in each square inch of human skin.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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