Absar, S.M. Nurul, Salma Jahan, and Selina Khanum. 2009. “Efficacy of Nebulized Ipratropium Bromide Versus Salbutamol in Infants With Actute Bronchiolities”. Bangladesh Medical Research Council Bulletin 34 (3):112-12. https://doi.org/10.3329/bmrcb.v34i3.1861.