这一数据库的数据资料来源于1995年-1997年间单胎分娩的11，061，599名孕妇。

The database is made up of 11,061,599 singleton deliveries between 1995 and 1997.

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FDA的批准使Monica技术可以在美国用于健康妇女的护理及单胎分娩过程。

This FDA clearance enables Monica technology to be used in the us during the care of healthy women and single childbirth.

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方法选取在我院分娩的单胎足月初产妇60例，随机分为实验组和对照组各30例。

Methods 60 cases of full-term nulliparous women that delivery in our hospital were randomly divided into the experimental group (30 cases) and the control group (30 cases).

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