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. 2020 May 19;15:1123–1134. doi: 10.2147/COPD.S245056

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© 2020 Zhang et al.

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Kaplan–Maier survival curves for the groups, blood eosinophil (Eos) ≥150 cells/μL and blood eosinophil (Eos) <150 cells/μL (P=0.023).