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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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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The horizontal fraction bar was introduced by the Arabs.