<http://schema.org/description>
"For the past 40 years, radiation has been the most effective method for treating deadly brain tumors called glioblastomas. But, although the targeting technology has been refined, beams of radiation still must pass through healthy brain tissue to reach the tumor, and patients can only tolerate small amounts before developing serious side effects."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2012-03-nanotherapy-deadly-brain-tumors-big.html>