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美国卫生研究院文献>BMC Pregnancy and Childbirth
>Agreement between transperineal ultrasound measurements and digital examinations of cervical dilatation during labor
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Agreement between transperineal ultrasound measurements and digital examinations of cervical dilatation during labor
BackgroundTo compare 2D transperineal ultrasound assessment of cervical dilatation with vaginal examination and to investigate intra-observer variability of the ultrasound method.
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