Shrestha, R. and Shakya, R. (2010) “Comparison of Bronchodilator Effect of Salbutamol Delivered via MDI and DPI in COPD Patients”, SAARC Journal of Tuberculosis, Lung Diseases and HIV/AIDS, 6(2), pp. 22–30. doi: 10.3126/saarctb.v6i2.3054.