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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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The average adult has about 21 square feet of skin.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Asthma cases in Americans are about 75% higher today than they were in 1980.