Bland-Altman plots. Individual differences in the degree of MCh-induced bronchoconstriction between invasively measured EF50 and GL and between EF50 and Cdyn, are plotted against the average corresponding values (expressed as PD50, μg MCh). The solid line represents the mean of the differences, the dashed lines show the upper and lower limits of agreement.
Glaab et al. Respiratory Research 2005 6:139 doi:10.1186/1465-9921-6-139