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Antrum formation rate of surviving follicles in progestin (P, A) and estradiol (E2, B) replacement experiments. CONT, control, TRL, trilostane, LP, low-dose P, HP, high-dose P, LE, low-dose E2 and HE, high-dose E2. Data are presented as mean ± SEM. Different letters represent significant differences between treatment groups in each experiment.
