Table 1.
HomEM, homozygous extensive metabolizer; HetEM, heterozygous extensive metabolizer; PM, poor metabollizer; EMR, endoscopic mucosal resection; EGC, early gastric cancer; MALT, mucosa associated lymphoid tissue; wt, wild type; m1, CYP2C19 mutation in exon 5; m2, CYP2C19 mutation in exon 4.
*Other causes include iron deficiency anemia or family history of gastric cancer.