Objective To explore the association between genetic polymorphisms of glutathione S-transferase (GST) M1 and T1 and susceptibility to Kazak population esophageal cancer (EC).

• 目的 为探讨与致癌物代谢有关的谷胱甘肽转硫酶 (GST) T1和 M1基因多型性与哈萨克族食管癌易感性的关系。