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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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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one 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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Illicit drug use costs the United States approximately $181 billion every year.
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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.