Safety And Efficacy Of GSK233705 Plus Salmeterol Compared With 2 Active Comparators And Placebo In Subjects With Chronic Obstructive Pulmonary Disease (COPD)
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: salmeterol
- DRUG: tiotropium
- DRUG: GSK233705
Sponsor
GlaxoSmithKline