
Keywords: DPI، پودر خشک پودر; Bronchial asthma; Salmeterol/fluticasone combination inhaler; Dry powder inhaler; Pressurized metered dose inhaler; Forced oscillation techniqueACT, asthma control test; BUD/FM, budenoside/formoterol; DPI, dry powder inhaler; COPD, chronic obstructive pul