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Changes in airway resistance (Raw), the G and H and eta induced by intravenous methacholine in WT (C57BL/6) and T-Cad−/− mice 24 hours after exposure to air or O3 (2 ppm for 3 h) (n = 7–10 mice for each group). *P < 0.05 compared with genotype-matched, air-exposed controls; #P < 0.05 versus WT mice with the same exposure.
