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Fig. 3 | Respiratory Research

Fig. 3

From: Efficacy and safety profile of mucolytic/antioxidant agents in chronic obstructive pulmonary disease: a comparative analysis across erdosteine, carbocysteine, and N-acetylcysteine

Fig. 3

Forest plot of pair-wise meta-analysis of secondary endpoints: impact of the erdosteine, carbocysteine, and NAC on the risk of experiencing at least one AECOPD (a), duration of AECOPD (b), and risk of hospitalization due to AECOPD (c), vs. placebo. *P < 0.05 and **P < 0.01. AECOPD: acute exacerbation of COPD; COPD: chronic obstructive pulmonary disease

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