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There are 20 feet of blood vessels in each square inch of human skin.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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