Headache may linger years later in people exposed to World Trade Center dust, fumes

Headache may linger years later in people exposed to World Trade Center dust, fumes  
http://www.eurekalert.org/pub_releases/2010-02/aaon-hml020210.php 
 
"Workers and residents exposed to dust and fumes caused by the collapse of the World Trade Center on September 11, 2001 frequently reported headache years later, according to research released today that will be presented at the American Academy of Neurology's 62nd Annual Meeting in Toronto April 10 to April 17, 2010."