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<b>Fig 1. Expression of IL-10 among the different groups.</b> A, mRNA expression of IL-10 in the UT tissue or NP tissue among groups. B, representative images of western blot assay and relative expression of IL-10 in the UT or NP among the groups. C, representative images of IL-10 immunohistochemistry and the number of IL-10 positive cells in the tissues from the different groups. CRSsNP, chronic rhinosinusitis without NP; CRSwNP, chronic rhinosinusitis with NP. *=<i>p</i>&lt;0.05, **=<i>p</i>&lt;0.01, ***=<i>p</i>&lt;0.001. <br><br>