Bajracharya, Manjita, et al. “Nebulized Magnesium Sulphate Versus Saline As an Adjuvant in Acute Exacerbation of Chronic Obstructive Pulmonary Disease in a Tertiary Centre of Nepal: A Randomized Control Study”. Journal of Institute of Medicine Nepal, vol. 43, no. 1, Apr. 2021, pp. 5-10, https://nepjol.info./index.php/JIOM/article/view/37461.