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Vaccines prevent between 2.5 and 4 million deaths every year.
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There are more sensory neurons in the tongue than in any other part of the body.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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The horizontal fraction bar was introduced by the Arabs.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.