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Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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The horizontal fraction bar was introduced by the Arabs.
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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.