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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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.