方法利用二维超声心动图仪对251例健康人心脏多切面检查。

Method Two-dimensional echocardiographic studies on hearts of 251 healthy subjects were performed.

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方法利用二维超声心动图仪对251例健康人心脏多切面检查。

Method Two-dimensional echocardiographic studies on hearts of 251 healthy subjects were performed.

youdao