P260 Tiotropium Respimat® Add-on To Inhaled Corticosteroids Improves Lung Function In Patients With Symptomatic Mild Asthma: Results From A Phase Iii Trial
P260 Tiotropium Respimat® Add-on To Inhaled Corticosteroids Improves Lung Function In Patients With Symptomatic Mild Asthma: Results From A Phase Iii Trial