Cite
MLA Citation
DMG Halpin et al.. “P255 Once-daily Tiotropium Respimat® Add-on To At Least Ics Maintenance Therapy Reduces Exacerbation Risk In Patients With Uncontrolled Symptomatic Asthma.” Thorax, vol. 69, n.d., p. A189. http://access.bl.uk/ark:/81055/vdc_100135154282.0x000028