After ovulation, the CL is formed from the ruptured follicle by proliferation and differentiation of thecal and granulosa cells as well as proliferation and invasion of thecal endothelial cells into the luteal parenchyma (3, 6).
After ovulation, the CL is formed from the rupturedfollicle by proliferation and differentiation of thecal andgranulosa cells as well as proliferation and invasion of thecalendothelial cells into the luteal parenchyma (3, 6).