<http://schema.org/description>
"Back pain can have many causes. They range from wear-and-tear to accidents or lifestyle habits that make the back susceptible to injury. Symptoms can sometimes be difficult to diagnose. Take this quiz to learn about some of the causes of back pain, their presentation and treatment."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/diseases-conditions/pain/back/causes-of-back-pain-quiz4.htm>