[KongchangAI]
Unverified90% confidenceCautionTime unknown

孕20周前不建议自行购买家用胎心仪频繁监测:此阶段胎心位置不固定、心率快,非专业操作极易找不到胎心而引发不必要的焦虑,反而增加急诊就诊

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90%
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Long-term
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