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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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.
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The horizontal fraction bar was introduced by the Arabs.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.