One hundred fourteen patients with moderate to severe COPD finished randomized @-month or @-month treatment with fluticasone ( @ g bid ) , @-month treatment with fluticasone and salmeterol ( @/@ g bid ) , or placebo ( first part of the Groningen and Leiden Universities Corticosteroids in Obstructive Lung Disease -LSB- GLUCOLD -RSB- study -LSB- GL@ -RSB- ) .