<http://schema.org/about>
"Drug addicts and their nonaddict siblings share the same brain abnormalities linked with poor self-control and drug dependence, a new study suggests."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/stories/some-brains-are-predisposed-toward-addiction-study-suggests>