Background The efficacy of inhaled salmeterol plus fluticasone propionate (SFC) in patients with serious or very serious COPD is well recorded. in Yellow metal stage II, 82 ml (95% CI: 60, 104) in Yellow metal stage III and 96 ml (95% CI: 54, 138) in Yellow metal stage IV individuals, and decreased the pace of… Continue reading Background The efficacy of inhaled salmeterol plus fluticasone propionate (SFC) in