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Vaccines prevent between 2.5 and 4 million deaths every year.
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Thyroid conditions may make getting pregnant impossible.
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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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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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There are 20 feet of blood vessels in each square inch of human skin.