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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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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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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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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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