Figure 1. Stages of estrous cycle, A) Pro-estrous phase B) Estrous phase C) Metestrus phase and D) Diestrus phase

From

The Effect of Bougainvillea spectabilis Leaf Extract on Polycystic Ovary Syndrome (PCOS) in Rat Model

Sania Riaz, Iqra Ejaz, Rizwan-ur-Rehman , Beenish Aftab, Maria Zahid, Zahra Andleeb

Journal of Food and Nutrition Research. 2022, 10(11), 762-771 doi:10.12691/jfnr-10-11-3