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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.