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Mean serum levels of estradiol (A), progesterone (B), and total testosterone (C) in reproductive age women not taking exogenous hormones (RA), postmenopausal women taking HT (HT+), and postmenopausal women not taking HT (HT−). ∗ denotes significant differences (P < 0.05). Mann-Whitney test was used to compare differences in estradiol levels between groups. Unpaired t test with Welch's correction was used to compare differences in progesterone and testosterone levels between groups.
