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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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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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There are approximately 3 million unintended pregnancies in the United States each year.