| Table 2. Ovarian structural parameters. Mean ± SD in different groups (µm2) | |||
| Control Group | Ovarian Stimulation Group | P4 Treated Group after Ovarian Stimulation | |
| Number of Corpora Lutea | 5.1±0.42 | 10.52±2.74a | 8.97±0.8a |
| Area of Corpora Lutea | 31634.1±7526.1 | 96359.2±36043.2a | 92092.9±22186.1a |
| Vascular Area of Corpora Lutea | 195.01±7.85 | 221.04±6.77a | 219.51±9.15a |
| Vascular Area of Ovaries | 198.57±3.81 | 225.62±3.62a | 230.49±2.25a |
| Density of Ovarian Vessels | 0.034±0.004 | 0.040±0.001a | 0.044±0.002a |
| aSignificant difference with the control group ( p ≤0.05). | |||