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The longest a person has survived after a heart transplant is 24 years.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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