Fig. 4.
The duration of the P-R interval (A and C) and the P wave (B and D) during late gestation (A and B) and the immediate perinatal period (C and D) in fetuses of control ewes (○) or fetuses of ewes infused with cortisol during pregnancy (1.0 mg·kg−1·day−1; ●). *Significant effect of time. **Significant overall effect of maternal cortisol treatment. ***Significant interaction effect of maternal cortisol treatment and time. †Values significantly different between groups at the indicated time point.