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. 2022 Feb 23;17:395–404. doi: 10.2147/COPD.S347607

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© 2022 Zhang et al.

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Serum C1q decreased in AECOPD subjects compared with stable COPD and non-COPD (A). Serum C1q was weakly negatively correlated with the percentage of neutrophils in peripheral blood in COPD subjects (B). ***P < 0.001.

Abbreviation: ns, not significant.