“…Previous studies have indicated that GSTP1 polymorphism is associated with various kinds of cancers, such as acute myeloid leukemia, lung cancer, breast cancer, colorectal cancer, brain tumor, and esophageal cancer (Cong et al, 2014;Silva et al, 2014;Song et al, 2014;Jaramillo-Rangel et al, 2015;Nasr et al, 2015;Sharma et al, 2015;Soto-Quintana et al, 2015;Zhou et al, 2015;Geng et al, 2016;Khabaz et al, 2016;Kimi et al, 2016). Several studies have also reported that GSTP1 polymorphism is associated with risk of gastric cancer in various populations, but the results were inconsistent (Nguyen et al, 2010;Zhang et al, 2011;Bao et al, 2012;García-González et al, 2012;Jing et al, 2012;Zhang et al, 2012;Ma et al, 2013).…”