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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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The average adult has about 21 square feet of skin.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.