Figure 4

Diameters of the left and right bronchi and the trachea measured prior to the onset of the sustained inflation in newborn rabbits delivered at 27 d (black), 29 d (light gray), or 30 d (dark gray) of gestational age.

Diameters of the left and right bronchi and the trachea measured prior to the onset of the sustained inflation in newborn rabbits delivered at 27 d (black), 29 d (light gray), or 30 d (dark gray) of gestational age.