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FEV1 % change from baseline, dropouts censored (means±1 SEM). (A) Subjects with asthma. (B) Subjects with COPD. FEV1 baseline means for placebo and loxapine, respectively, were 3.33 L and 2.93 L for asthma and 1.60 L and 1.55 L for COPD subjects.
