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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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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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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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.