Conclusion Both estrogen and progesterone may protect the structure and function of pelvic floor in pregnant primiparas.

结论雌激素和孕激素对妊娠期盆底结构和功能均起到保护作用。

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Conclusion Both estrogen and progesterone may protect the structure and function of pelvic floor in pregnant primiparas.

结论雌激素和孕激素对妊娠期盆底结构和功能均起到保护作用。

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