目的：研究胎盘种植部位中间型滋养细胞病变的发病机理和病理组织学特征，探讨有效的治疗方法。

Objective: to study the pathogenesis, pathological features of placental site intermediate trophoblast disease and to discuss the method of efficient treatment.

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根据不同的血清学模式，分别比较两组胎儿宫内感染情况、胎盘感染情况。

The fetal HBV infection rate and placenta tissues HBV infection degree were compared according to different blood serum model.

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目的：培养纯度较高的人绒毛膜滋养层细胞，为胎盘绒毛在妊娠期间的作用及其机制研究提供细胞学基础。

AIM: To prepare highly purified human trophoblast cells from human placentae at the first trimester of normal pregnancy for further study on the function of human placentae villi.

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