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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.