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Comparison of Bronchodilator Response of Nebulized Salbutamol With Nebulized Salbutamol and Ipratropium Bromide in Patients With Acute Exacerbation of Advanced COPD. TAJ: J of Teachers Assoc 2022, 34 (2), 56-63. https://doi.org/10.3329/taj.v34i2.58556.