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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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The horizontal fraction bar was introduced by the Arabs.
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Illicit drug use costs the United States approximately $181 billion every year.
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People about to have surgery must tell their health care providers about all supplements they take.
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Medication errors are more common among seriously ill patients than with those with minor conditions.