Premature rupture of fetal membranes is an important obstetrical complication, but its cause and mechanism are still not well-known.
胎膜早破是一重要的产科并发症，但确切的病因及发病机制仍不十分明确。
Methods: the subjects were divided into two groups according to whether PROM or not, both eliminating the obstetrical complication and medical and surgery complication.
方法：将研究对象按是否胎膜早破分为两组，均排除产科并发症及内外科合并症。
Methods: the subjects were divided into two groups according to whether PROM or not, both eliminating the obstetrical complication and medical and surgery complication.
方法：将研究对象按是否胎膜早破分为两组，均排除产科并发症及内外科合并症。
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