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More than 4.4billion prescriptions were dispensed within the United States in 2016.
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
There are approximately 3 million unintended pregnancies in the United States each year.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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