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Vaccines prevent between 2.5 and 4 million deaths every year.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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