早期应用监测脐动脉血流频谱变化对胎儿宫内生长迟缓诊断的临床意义
조기응용감측제동맥혈류빈보변화대태인궁내생장지완진단적림상의의
The Clinical Significance of Early Monitoring of Changes of Umbilical Artery Blood Flow Spectrum for Diagnosis of Intrauterine Growth Retardation