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After the heart has provided oxygen to the body's tissues, the veins convey the blood back to the heart without the oxygen. Proper blood flow and the avoidance of issues like varicose veins, spider veins, deep vein thrombosis, and others depend on the con...
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After the heart has provided oxygen to the body's tissues, the veins convey the blood back to the heart without the oxygen. Proper blood flow and the avoidance of issues like varicose veins, spider veins, deep vein thrombosis, and others depend on the con...
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