目的：检测脆性组氨酸三联体基因在胃癌组织中等位基因缺失和突变情况，分析该异常在胃癌发生中的作用。

Objective: to detect allelic deletion and mutation of FHIT gene in gastric cancer, and to analyze the role of the abnormalities in the carcinogenesis of gastric cancer.

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目的：研究脆性组氨酸三联体(FHIT)基因微卫星D3S1234和D3S1300长度多态性与肺癌的关系。

AIM: To analyze the relationship between lung cancer and length polymorphisms of microsatellite D3S1234 and D3S1300 located on fragile histidine triad (FHIT) gene.

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