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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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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.