Fig. 3From: Exposure to urban PM1 in rats: development of bronchial inflammation and airway hyperresponsivenessChanges of the respiratory mechanical parameters following methacholine challenge. Raw: airway resistance, G: tissue damping, H: tissue elastance, BL: baseline, M4-8-16: methacholine doses of 4-8-16 μg/kg/min. *: p < 0.05 vs. control groupBack to article page