<http://schema.org/description>
"In one of the first studies of its kind, UCLA researchers used a unique brain scan to assess the levels of amyloid plaques and neurofibrillary tangles -- the hallmarks of Alzheimer's disease -- in adults with Down syndrome."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2011-06-brain-scan-patterns-plaques-tangles.html>