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More than 4.4billion prescriptions were dispensed within the United States in 2016.
The longest a person has survived after a heart transplant is 24 years.
The horizontal fraction bar was introduced by the Arabs.
The average adult has about 21 square feet of skin.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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