Figure 1
Study design. FEV1, forced expiratory volume in 1 second; ICS, inhaled corticosteroids; PEF, peak expiratory flow; QD, once-daily.
Figure 1 | Respiratory Research
Study design. FEV1, forced expiratory volume in 1 second; ICS, inhaled corticosteroids; PEF, peak expiratory flow; QD, once-daily.