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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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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.