The aim was to investigate the clinical characteristics and molecular pathogenic mechanism of twins with congenital factor V (FV) deficiency.

中文翻译：

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先天性凝血因子 V 缺乏症双胞胎的临床表型和遗传分析。

目的 探讨先天性因子V（FV）缺乏双胞胎的临床特征和分子发病机制。