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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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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.