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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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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.