Uddin, M. K. S. “Dual Bronchodilation By Once Daily Fixed Dose Combined Indacaterol And Glycopyrronium, New Era For Treatment In Moderate To Severe COPD”. KYAMC Journal, vol. 7, no. 2, Aug. 2017, pp. 804-5, doi:10.3329/kyamcj.v7i2.33842.