Ahmed, Shamim, Mohammed Atiqur Rahman, Shah Ashiqur Rahman, and Ashiq Choudhury. 2022. “Effectiveness of Indacaterol-Glycopyrronium in Preventing COPD Exacerbations in Comparison to Salmeterol-Fluticasone”. Bangabandhu Sheikh Mujib Medical University Journal 14 (3):43-49. https://doi.org/10.3329/bsmmuj.v14i3.56597.