echography sonography
... ultrasound echography 超声 echography sonography 声像图法 echography retina 释义视网膜回波描记术 ...
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方法对135例单胎自然分娩的胎盘剥离声像图进行分类，并采用称重法测量第三产程出血量。
Methods All 135 patients had spontaneous delivery at term. The placenta separation was categorized during the third stage labor with ultrasonographic imaging, and quantity of bleeding measured.
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