何時不能聽到胎兒心跳

您需要了解的有關循環系統和胎兒心率的事情

對於懷孕的母親來說，聽到胎兒的心跳是一件神聖的事情。那麼您知道嬰兒的胎兒心率如何形成和改變嗎？

We use cookies to improve your experience.
By continuing, you acknowledge that you have read and understand our Cookie Policy. Accept