JOURNAL OF THE PAKISTAN MEDICAL ASSOCIATION, vol.64, no.9, pp.1037-1041, 2014 (SCI-Expanded)
Objective: To determine whether endogenous carbon monoxide levels in exacerbations of Chronic Obstructive Pulmonary Disease patients were higher compared to healthy individuals and to investigate alteration of carbon monoxide levels across the three different severity stages of Global Initiative for Chronic Obstructive Lung Disease criteria related to Chronic Obstructive Pulmonary Disease exacerbations.