Figure 1

Plasma estradiol concentrations (pg/ml) in the Siberian hamster estrous cycle. Bar graphs represent mean ± SEM. Groups with different letters are significantly different (p < 0.05).
Plasma estradiol concentrations (pg/ml) in the Siberian hamster estrous cycle. Bar graphs represent mean ± SEM. Groups with different letters are significantly different (p < 0.05).