Fig. 1

Follicle survival rates in the control (CTRL), letrozole (LET) 30 ng/ml, and LET 100 ng/ml treatment groups at day 10 of culture. CTRL group, base media plus letrozole vehicle (dimethyl sulfoxide, DMSO); LET 30 group, base media plus 30 ng/mL letrozole and DMSO; and LET 100 group, base media plus 100 ng/mL letrozole and DMSO. Data are expressed as mean ± standard errors. There was no significant difference in follicle survival rates among the groups (P = 0.247, one-way ANOVA)