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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 first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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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.