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Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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There are 20 feet of blood vessels in each square inch of human skin.