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Carotid Stenosis : Tools

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Cholesterol is a soft, waxy substance found in all parts of the body. It helps form cell membranes and is involved in production of some hormones and vitamin D. Excess cholesterol can build up in the arteries, narrowing them and slowing or blocking blood flow to the heart. To learn more, take this quiz based on information from the National Heart, Lung and Blood Institute and the American Heart Association.
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