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. 2021 Sep 2;16:2503–2513. doi: 10.2147/COPD.S321877

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© 2021 Che et al.

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RELMβ expression was significantly increased in patients with COPD. (A) RELMβ mRNA expression in patients with COPD and normal controls in the GEO database. (B) RELMβ protein expression in the sera of patients with COPD and control individuals.*p≤0.05, **p≤0.01, ****p≤0.0001.