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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.