目的探索妊娠高血压综合征（PIH）的发生与组织相容性白细胞抗原（HLA） E基因多态性是否存在关联。

Objective To explore the possible association between the pathogenesis of pregnancy induced hypertension (PIH) and the histocompatibility leukocyte antigen (HLA) E gene polymorphism.

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目的：探讨人类白细胞抗原系统(HLA)与妊高征(PIH)的关联。

Objective: To explore the mechanism of correlation between human leucocyte antigen (HLA) and pregnancy induced hypertension (PIH).

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