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Serum sex steroid concentrations in the maternal circulation of spotted hyenas during control and letrozole-treated pregnancies.
| Subject | Condition | Gestational age at sample collection | Estrone (pg/ml) | Estradiol (pg/ml) | Total Testosterone (ng/ml) | Free Testosterone (pg/ml) |
|---|---|---|---|---|---|---|
| 56a | Control | 91 days | 6090 | 670 | 0.49 | <0.15 |
| 56b | Letrozole | 98 days | 220 | <5 | 2.88 | 1.34 |
| 49a | Control | 100 days | 4180 | 450 | 0.61 | <0.15 |
| 49b | Letrozole | 99 days | 52 | <5 | 1.38 | 2.51 |
