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The level of melatonin in EVs derived from serum and EVs derived from oviduct fluid
| Samples | EVs derived from serum | EVs derived from oviduct fluid |
|---|---|---|
| Concentration (mean ± SD, pg/mL) | 12.7 ± 2.6 | 43.4 ± 4.2 |
| Maximum concentration (pg/mL) | 15.1 | 52.3 |
| Minimum concentration (pg/mL) | 8.9 | 29.5 |
