http://www.w3.org/ns/prov#value | - If left untreated, high blood pressure can cause catastrophic health problems: the heart may enlarge, which can lead to heart failure; small bulges --aneurysms -- may form in blood vessels, including the aorta (the main artery to the heart) and others in the brain, legs, and intestines; blood vessels in the kidney may narrow, causing kidney failure; blood vessels in the eyes may burst or bleed, po
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