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Did you know?
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.