彩色多普勒超声检测脐动脉血流对评价胎儿宫内窘迫的临床应用价值
채색다보륵초성검측제동맥혈류대평개태인궁내군박적림상응용개치
Detected by color Doppler ultrasound of umbilical artery blood flow evaluation of fetal distress and its clinical application value
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