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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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The average adult has about 21 square feet of skin.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.