Fig. 3.

Simulated results for expired volume against time for normal young adult female (left-hand column) and male (right-hand column) subjects. Individual subject measurements of FEV1 and FEF25–75 are superimposed.

Simulated results for expired volume against time for normal young adult female (left-hand column) and male (right-hand column) subjects. Individual subject measurements of FEV1 and FEF25–75 are superimposed.