Taqweem, M. A., I. Alam, S. A. Taqweem, and A. Javaid. “Comparison Between Bronchodilator Effects of Intravenous Aminophylline Vs Nebulised Salbutamol in Acute Severe Asthma”. Journal of Postgraduate Medical Institute, vol. 18, no. 2, Sept. 2011, https://www.jpmi.org.pk/index.php/jpmi/article/view/896.