** COMMERCIAL IMAGE ** In this photograph taken by AP Images for DRIVE4COPD.COM, DRIVE4COPD screen team member Rita Mikel, left, screens Richard Whitthorne for risk of chronic obstructive pulmonary ... more 
** COMMERCIAL IMAGE ** In this photograph taken by AP Images for DRIVE4COPD.COM, DRIVE4COPD screen team member Rita Mikel, left, screens Richard Whitthorne for risk of chronic obstructive pulmonary disease (COPD) at the Ft. Worth Stockyards as part of DRIVE4COPD’s Great American Screen Off on Thursday, Nov. 4, 2010 in Fort Worth, Texas. So far this year, nearly 500,000 people have been screened for their risk at various events and DRIVE4COPD.COM. (Brandon Wade/AP Images for DRIVE4COPD.COM) less 
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Associated Press
Sat, Nov 6, 2010 2:45 AM EDT