Fig. 1From: Effect of cold stress on ovarian & uterine microcirculation in rats and the role of endothelin systemEstrous Cycle and Vaginal Exfoliated Cell Smear in Rats. a: Proestrus, b: Estrus, c: metaoestrus, d: anestrum. e: estrous cycle(hours), values are means±SD(n = 7–8), pa < 0.01 vs controlBack to article page