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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.