Objective to assess the value of vibratory acoustic stimulation test (VAST) in evaluating fetal well-being in labor.

目的探讨声振刺激试验(VAST)在产时估价胎儿宫内健康情况的作用。

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Objective to evaluate the value of the type of fetal respiratory movement after vibratory acoustic stimulation test as marker of fetal health.

目的通过观察振动声音刺激后胎儿呼吸运动的类型，结合临床探讨是否能作为评价胎儿健康的指标。

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