Short tandem repeat ( STR) is one of the genetic polymorphic markers within the NRY region in Chromosome Y, which is also called microsatellite.

短串联重复（STR）是Y染色体NRY区的多态性遗传标记的一种，又称微卫星。

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Objective:To investigate the relationship between the polymorphic CAG short-tandem repeat(STR) at the androgen receptor(AR) gene exon 1 and lung cancer.

目的：探讨人雄激素受体（AR）基因第一外显子CAG串联短重复序列（STR）多态性与肺癌发生之间的关系。

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