Fadhil, A. A., Nema, M., & Abdalrazak, S. A. (2014). The Use of Volumetric Chest Computed Tomography in Determination of Chronic Obstructive Pulmonary Disease Phenotypes. Journal of the Faculty of Medicine Baghdad, 56(1), 20-24. https://doi.org/10.32007/jfacmedbagdad.561419