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Gefitinib decreases the M2 polarization of TAMs. (A) The lung sections from a different group were double stained with the macrophage marker CD68 and the M2-marker CD206. The percentage of CD68+ and CD206+ cells was calculated as a ratio of green cells to DAPI blue cells. Random non-overlapping fields from sections of each group were examined. The results are presented as the mean±SEM. *P<0.05.
