Study to Evaluate Handling Errors in Usage of SERETIDE® Metered Dose Inhaler (MDI) (EVOHALER®) by Adult Subjects Currently Using the SERETIDE DISKUS® Inhaler
Conditions
Interventions
- DEVICE: SERETIDE MDI
- DEVICE: Placebo DISKUS Inhaler
- DEVICE: Placebo MDI
Sponsor
GlaxoSmithKline