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Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.