Chokhani R, Shrestha SK, Bhattarai S, Mukhopadhyay A, Gaur V, Gogtay J. Experience of clinicians with dual bronchodilator therapy in COPD (EXPAND) in Nepal. Nep. Resp. J. 2023;2(2):28-34. doi:10.3126/nrj.v2i2.69201