... 晚期妊娠流产 abortion in third trimester 晚期妊娠胎盘 placenta of late pregnancy 早期妊娠胎盘 placenta of early pregnancy ...
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Objective To strengthen clinical observation and nursing of pregnant women with placenta previa before and after delivery so that hemorrhage of late pregnancy can be discovered early and prevented.
目的加强对前置胎盘孕妇的产前产后全面临床观察与护理，早期发现和预防妊娠晚期出血。
Objective To investigate the clinical significance of Ultrasound diagnosis for placenta previa during late pregnancy.
目的探讨超声诊断孕晚期前置胎盘的临床意义。
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