Rashid, M. M., M. M. Khair, M. A. Hossain, and M. R. Hassan. “Newer Effective Treatment for Adult Acute Asthmatics With a Multi-Dose Regimen of Ipratropium Bromide Plus Salbutamol Using Metered Dose Inhalers With a Spacer Device in Emergency Department”. Journal of Bangladesh College of Physicians and Surgeons, vol. 30, no. 4, Apr. 2013, pp. 195-00, doi:10.3329/jbcps.v30i4.14761.