<http://schema.org/description>
"High blood is usually defined by many symptoms but one particularly common side effect of high blood pressure is hypertension. Learn more about hypertension and see what you can do to prevent it from happening."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/diseases-conditions/cardiovascular/blood-pressure/common-symptoms-of-high-blood-pressure.htm>