the degree of bronchodilation seen 120 minutes after the oral salbutamol was equal to that seen 40 minutes after the salbutamol aerosol as assessed by peak expiratory flow ( pef ) , forced vital capacity ( fvc ) , forced expiratory volume in 1 second ( fev1 ) , forced expiratory flow during the middle half of the fvc ( fef25-75 % ) , and maximum expiratory-flow after 75 % of the fvc had been expired ( v25 ) .
C1371299
bronchodilation
C0001927
salbutamol