Unfortunately, there was an error in the legend for figure 2⇓. The corrected legend is reproduced below with the figure.
Fig. 1.—
Forced expiratory volume in one second change from baseline at clinic visits compared with placebo after treatment with formoterol. ▴ :18 µg; ▪: 9µg; ♦: 4.5µg; •: placebo.
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