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Gene expression of MMPs and TIMPs in primary fibroblasts from nasal polyp tissue stimulated by (A) periostin and (B) tenascin C. N = 10. The statistical significance of differences in expression was assessed by means of the Wilcoxon matched‐pairs test. Data are presented as median and interquartile range. *p < 0.05, **p < 0.01. MMP, matrix metalloproteinases; TIMP, tissue inhibitors of metalloproteinase
