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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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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The familiar sounds of your heart are made by the heart's valves as they open and close.