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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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The average adult has about 21 square feet of skin.
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There are 20 feet of blood vessels in each square inch of human skin.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.