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The horizontal fraction bar was introduced by the Arabs.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Medication errors are three times higher among children and infants than with adults.
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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