目的探讨子痫前期母胎循环肝细胞生长因子（HGF）对子痫前期发病的影响。
Objective To investigate the changes of hepatocyte growth factor(HGF)in maternal and fetal circulation of patients with preeclampsia.
利用胎羊体外循环模型观察胎盘功能及胎心功能变化，研究胎羊体外循环建立方法和存在问题。
To study the placental and fetal heart function, cardiopulmonary bypass was established in fetal lambs and the different methods of cannulation were applied.
利用胎羊体外循环模型观察胎盘功能及胎心功能变化，研究胎羊体外循环建立方法和存在问题。
To study the placental and fetal heart function, cardiopulmonary bypass was established in fetal lambs and the different methods of cannulation were applied.
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