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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
The familiar sounds of your heart are made by the heart's valves as they open and close.
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Everyone has one nostril that is larger than the other.
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