Abd Ala, I. A.; Mousa, N. A. W.; Al-Lami, F. Detection of Chronic Obstructive Pulmonary Disease Among Smokers Aged ≥40 Years Attending Primary Health Care Centers in Baghdad-AL-Karkh and AL-Resafa. J Fac Med Baghdad 2023, 64 (4), 245-251. https://doi.org/10.32007/jfacmedbagdad.6441936.