<http://schema.org/description>
"About 20 years ago, scientists discovered the gene that causes Huntington's disease, a fatal neurodegenerative disorder that affects about 30,000 Americans. The mutant form of the gene has many extra DNA repeats in the middle of the gene, but scientists have yet to determine how that extra length produces Huntington's symptoms."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2013-01-role-huntington-gene.html>