Hasan, M. A. ., Sheherin, S. ., Hossain Sardar, M. A. ., amin, M. R. ., Habib, M. A. . and Ahamed, F. . (2022) “Comparison of Bronchodilator Response of Nebulized Salbutamol with Nebulized Salbutamol and Ipratropium Bromide in Patients with Acute Exacerbation of Advanced COPD”, TAJ: Journal of Teachers Association, 34(2), pp. 56–63. doi: 10.3329/taj.v34i2.58556.