Afify, S.W.S.M.A., Asmar, A.F.A.G.E., Osman, A.M., Eldin, N.O.A.S. and Hassan, H.G.E.M.A. 2022. 3D CT volumetric analysis of the lung in COPD patients: Comparison with pulmonary function tests. International journal of health sciences. 6, S4 (May 2022), 2804–2808. DOI:https://doi.org/10.53730/ijhs.v6nS4.8021.