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(A) C-reactive protein (CRP) measured from blood samples. ^p = 0.03 for Wilcoxon matched-pairs signed rank test. (B) Sputum neutrophil elastase. Comparisons were based on paired t-tests, from log-transformed data. Solid columns represent pre-treatment; open columns represent post-treatment. Bars represent mean values and error bars represent SDs on the same scale as means.
