Quantitative CT Analysis in Patients with Pulmonary Emphysema: Do Calculated Differences Between Full Inspiration and Expiration Correlate with Lung Function? - Song L; Leppig JA; Hubner RH; Lassen-Schmidt BC; Neumann K; Theilig DC; Feldhaus FW; Fahlenkamp UL; Hamm B; Song W; Jin Z; Doellinger F (International journal of chronic obstructive pulmonary disease, 2020)