Figure 3
Forest plots for subgroup analyses by COPD course (stable and acute exacerbations) (A) and by COPD severity (GOLD I, II, III, and IV) (B).
Forest plots for subgroup analyses

Forest plots for subgroup analyses by COPD course (stable and acute exacerbations) (A) and by COPD severity (GOLD I, II, III, and IV) (B).

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