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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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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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There are approximately 3 million unintended pregnancies in the United States each year.