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Rac2 mediates BLM-induced airway neutrophil infiltration. (A) Total cell counts, (B) neutrophils, (C) macrophages and (D) lymphocytes in BAL samples at 3 and 7 days after intratracheal saline or bleomycin administration to WT and rac2-/- mice (n.s. not significant, *p < 0.05, **p < 0.01, ***p < 0.001, n = 5).
