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. 2021 May 21;12:670971. doi: 10.3389/fimmu.2021.670971

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Copyright © 2021 Deng, Yin, Zhang, Zhou and Hou

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Analysis of immune landscape associated with COPD. Heatmap (A) and violin plot (B) showing the distribution of 22 types of immune cells in normal smoker and COPD patients in GSE76925; (C) The relationship between FVC% predicted and immune cell infiltration level; red: statistically significant (P < 0.05); (D) The relationship between FEV1/FVC and immune cell infiltration level; red: statistically significant (P < 0.05).