Aghili, Mehrad, et al. “Effectivness of Nebulized Budesonide for COPD Exacerbation Management in Emergency Department; A Randomized Clinical Trial: Nebulized Budesonide and COPD Severity”. Archives of Academic Emergency Medicine, vol. 8, no. 1, Oct. 2020, p. e85, doi:10.22037/aaem.v8i1.943.