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Leukotriene (LT) B4 concentrations in exhaled breath condensate in steroid-treated children with atopic asthma. Exhaled LTB4 concentrations in atopic asthmatic children who were receiving either 100 μg/day (open squares) or 200 μg/day (filled squares) of inhaled fluticasone at a constant dose for at least 8 weeks. LTB4 values are expressed as picograms produced during 15 minutes of breathing. Median values are shown with horizontal bars.
