A NON-INFERIORITY STUDY TO EVALUATE THE EFFICACY, SAFETY, AND TOLERABILITY OF FLUTICASONE PROPIONATE/SALMETEROL (FSC) 250/50 MICROGRAM (MCG) THROUGH A CAPSULE-BASED INHALER AND A MULTI-DOSE INHALER ADMINISTERED TWICE DAILY (BID) IN ADULTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD):