<http://schema.org/description>
"The third most deadly disease in the U.S., chronic obstructive pulmonary disease (COPD), appears to be partly driven by the action of immune cells circulating in the blood entering into the tissues of the lungs. UC Davis scientists have discovered that this key process begins in the blood vessels around the large airways in the center of the lung. The discovery helps clarify how smoking can bring about this severe respiratory condition."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2012-03-chronic-obstructive-pulmonary-disease.html>