A. M. Tahir, W. Akhtar, S. U. D. Balooch, W. Ahmed, A. M. Samar, and A. Sohail, “EFFICACY OF SALBUTAMOL DELIVERED THROUGH A METERED DOSE INHALER & SPACER IN CHILDREN WITH ACUTE EXACERBATION OF ASTHMA”, PAFMJ, vol. 71, no. 2, pp. 438–41, Apr. 2021.