ADVAIR DISKUS® (Fluticasone Propionate/Salmeterol) Inhaler Versus SEREVENT DISKUS® (Salmeterol) Inhlaer On Inflammatory Cells And Markers In Chronic Obstructive Pulmonary Disease. ADVAIR DISKUS® and SEREVENT DISKUS® Inhalers Are Trademarks of the GSK Group of Companies.

GSK Investigational Site, Philadelphia

GSK Investigational Site, Philadelphia

GSK Investigational Site, Durham

GSK Investigational Site, Decatur

GSK Investigational Site, Gainesville

GSK Investigational Site, Birmingham

GSK Investigational Site, Iowa City

GSK Investigational Site, Madison

GSK Investigational Site, Fort Collins

GSK Investigational Site, San Diego

GSK Investigational Site, Los Angeles