<http://schema.org/description>
"As a reminder of just how persistent some toxic chemicals can be, a Johns Hopkins-led research team reports finding traces of long-banned DDT and PCBs along with other contaminants in the blood of 50 pregnant women checked from Baltimore and its suburbs."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2013-06-hopkins-led-long-banned-chemicals-pregnant-mothers.html>