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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
There are 20 feet of blood vessels in each square inch of human skin.
The FDA recognizes 118 routes of administration.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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