Fig. 4From: Activated ovarian endothelial cells promote early follicular development and survival a. Oocyte growth and estradiol concentrations. a Oocyte growth of oocytes < 45 μm b. Oocytes growth of oocytes >45 μm c. Follicular estradiol secretion. Due to undetectable levels of Estradiol in primary follicles and from individual follicles, we cultured 5 secondary follicles (100–150 μm) in each wellBack to article page