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Peitu Shengjin Recipe and Biostime Probiotic Powder improved the lung function of rats with COPD. (a) FEV0.3/FVC (%). (b) Dynamic lung compliance (Cdyn). (c) Resistance of inspiration (RI). Note: ▲P < 0.05 and ▲▲P < 0.01 vs. the control group; ★P < 0.05 and ★★P < 0.01 vs. the model group.
