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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.