When placental adherence happens, blood circulation of villus in the placenta could be retard, and then the developing of fetus were affected.
当粘连发生，胎盘内血液循环受阻将直接影响胎儿发育。
When placental adherence happens, blood circulation of villus in the placenta could be retard, and then the developing of fetus were affected.
当粘连发生，胎盘内血液循环受阻将直接影响胎儿发育。
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