<http://schema.org/description>
"The American Thoracic Society has issued the first-ever guidelines on the use of fractional exhaled nitric oxide (FENO) that address when to use FENO and how to interpret FENO levels in different clinical settings. The guidelines, which appear in the September 1 American Journal of Respiratory and Critical Care Medicine, are graded based on the available evidence in the literature."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2011-09-ats-publishes-clinical-guidelines-feno.html>