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. 2020 Feb 3;15(1):476. doi: 10.4081/mrm.2020.476

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©Copyright: the Author(s), 2020

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Figure 1. — Graphical representation of the median values of VE/VCO₂ slope and intercept in the two groups during cardiopulmonary exercise test. VCO₂, Carbon dioxide output; VE/VCO₂ slope median values and interquartile range: emphysematous 32.4 (29.4-35.3), non-emphysematous 28.0 (26.1-33.2); p=0.015. VE/VCO₂ intercept median values and interquartile range: emphysematous 6.3 (3.7-7.6), non-emphysematous 5.6 (4.2-6.4); p=0.536.