Objective To investigate the association of susceptibility to gastric cancer with gene polymorphism of metabolic enzymes cytochrome P450 2E1(CYP 2E1) and glutathione S transferase M1(GST M1).

• 目的 探讨代谢酶细胞色素P450 2E1（CYP2E1）和谷胱甘肽转硫酶M1（GSTM1） 基因多态性与胃癌的关系。